Option A is incorrect since the sentence has been changed. Option B is incorrect since "intelligent" is an adjective in the sentence. The noun form of "intelligent" is "intelligence" which is present in option C. Therefore, C is correct while option D is wrong.

A verb is an action word. It describes the act of doing something in a sentence. 'Evaluate' is the verb given for the sentence. 

A verb is an action word. It describes the act of doing something in a sentence. 'True' is the verb given for the sentence. 

An adjective is a word that modifies a noun or a pronoun. 'Wealthy' is the adjective given for the sentence. 

The word, 'deciding' is the present continuous form of the verb, 'decide'. Its abstract noun form is 'decision'. Hence, option B is the correct answer.

The abstract noun form of the adjective, 'long' is 'length. It means the measurement of something from end to end. Hence, option D is the correct answer. When used in the sentence, it means: "It would take 18 months to walk from one end of the of the Great Wall of China to the other".

The word, 'influence' is an abstract noun which means: The capacity to have an effect on the character, development, or behaviour of someone or something. The verb form for this word is also 'influence'. It means: 'Have an influence on something/somebody'. The past tense of influence is: influenced. Hence, option C is the correct answer. 

The blank in the given sentence refers to a person. We know this because, the subject, 'She' is described by the blank. 

The abstract noun form of the adjective, 'graceful' is 'grace'. It means: The ability to move in a way that seems to flow and looks easy. Hence, option C is the correct answer.

The noun form of 'fought' is 'fight', which means: A violent confrontation or a struggle. Hence, option C is correct.

The word, 'confusion' is a noun, whose verb form is 'confuse'. Its past tense is 'confused', which means: Made someone bewildered/ made something complex/ less easy to understand. Hence, the sentence, 'The sudden change of rules confused our team a lot' as mentioned in option B is grammatically correct

The underlined word, 'conclusion' is a noun which means: The final part of something. It also means the opinion formed by someone after analysing all the available information. The associated verb is, 'conclude' which means: To judge or decide or opine something after analysing/thinking about it. The past tense form of the verb is 'concluded', as used in Option A, which is the correct answer. 

The abstract noun form of the adjective, 'beautiful' is 'beauty'. Hence, option B is the correct answer. 

'Explained' is the simple past tense form of the verb, 'explain'. Its noun form is 'explanation'. Hence, option D is correct. 

'Conversing' is the present continuous form of the verb, 'converse'. Its noun form is 'conversation', which means: A talk, especially an informal one, between two or more people, in which news and ideas are exchanged. Hence, option A is correct. 

The noun form of the verb, 'run' is 'run'. Hence option B is correct. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'complexity' is a noun. The words ending with -ity can be changed into an adjective by dropping -ity from the end. Thus, the adjective form of 'complexity' is 'complex'. Eg: They were discussing a very complex situation. Here, 'situation' is a noun which is modified by the adjective 'complex'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'servility' is a noun. The words ending with ity can be changed into an adjective by dropping 'ity' from the end and adding suffix - e at the end. Thus, the adjective form of 'servility' is 'servile'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'familiarity' in the given sentence is a noun. The words ending with -ity can be changed into an adjective by dropping -ity from the end. Thus, the adjective form of 'familiarity' is 'familiar'.

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'Blasphemy' is a noun. The words ending with consonant + Y can be changed into an adjective by dropping 'y' from the end and adding suffix - ous at the end. Thus, the adjective form of 'Blasphemy' is 'Blasphemous'. Eg: Catholics used to believe that anyone but a priest touching a consecrated wafer was blasphemous. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'Therapy' is a noun. The words ending with consonant + Y can be changed into an adjective by dropping 'y' from the end and adding suffix - al at the end. Thus, the adjective form of 'Therapy' is 'Therapeutical'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'heresy' is a noun. The words ending with consonant + y can be changed into an adjective by adding suffix - al. Thus, the adjective form of 'heresy' is 'heretical'. Eg: He revealed his heretical reviews on such a sensitive topic. Here, 'reviews' is a noun which is modified by the adjective 'heretical'.

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'flippancy' is a noun. The adjective form of the given word can be formed by adding suffix - nt at the end of the word. Thus, the adjective form of the given word is 'flippant'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'tumult' is a noun. Some words can be changed into an adjective by adding suffix - uous. Thus, the adjective form of 'tumult' is 'tumultuous'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'erudition' is a noun. Some words can be changed into an adjective by adding suffix - 'e' at the end of the word. Thus, the adjective form of the given word is 'erudite'.

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'altruism' is a noun. Some words can be changed into an adjective by adding suffix - 'ic' at the end of the word. Thus, the adjective form of the given word is 'altruistic'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'torrent' is a noun. Some words can be changed into an adjective by adding suffix - 'al' at the end of the word. Thus, the adjective form of the given word is 'torrential'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'empathy' is a noun. Some words can be changed into an adjective by adding suffix - 'ic' at the end of the word and removing 'y' from the end. Thus, the adjective form of the given word is 'empathetic'.

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'depreciation' is a noun. Some words can be changed into an adjective by adding suffix - 'ory' at the end of the word. Thus, the adjective form of the given word is 'depreciatory'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'demonstration' is a noun. Some words can be changed into an adjective by adding suffix - 'ive' at the end of the word. Thus, the adjective form of the given word is 'demonstrative'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'obsolescence' is a noun. Some words can be changed into an adjective by forming a new word from the noun word. Thus, the adjective form of the given word is 'obsolete'. 

In the given sentence, the main verb is "teaches" (teach). 

The word, 'regulation'' is a noun which means: A law, rule or other order prescribed by an authority (like the government). The related verb is 'regulate', which means: To control or direct by a rule, principle or method. The word 'regulates' is the present tense form of the verb, 'regulate' used when a third person singular noun is the subject.  In this case, the government is a third person, singular noun, which acts as the subject. Hence, option C is correct. 

The word, 'doubt' is an abstract noun which means a feeling of uncertainty about the truth, reality or nature of something. The associated verb is, 'doubt' which means to be uncertain about or to hesitate to believe or to consider something unlikely. Hence, option A is correct.

The word, 'investment' is a noun, whose verb form is 'invest'. Its past tense is 'invested', which means: Spent a lot of money to buy something which is likely to be profitable in future. The sentence, 'Mr. John has invested heavily in our business' as mentioned in option C is grammatically correct. 

The word, 'petition' is a noun, whose verb form is also 'petition'. Its past tense is 'petitioned' which means: Presented a formal written and signed request to an authority in respect of a particular cause. Hence, the sentence, 'The villagers petitioned the government' as used in option B is the correct answer.

The word, 'transformation' is a noun which means: A complete change in the appearance or character of something/someone, especially so that the thing/ person is improved. The related verb is 'transform' which means: Make a marked change in the nature, form or appearance of something/someone. The past tense of the verb is transformed. Hence, option B is correct.

The underlined word, 'failure' is an abstract noun which means: someone or something not succeeding. It also means not doing something that one is expected to do. The associated verb is 'fail' which means: To not succeed in what one is trying to achieve/expected to do. The past tense form of the verb is 'failed', as used in Option C, which is the correct answer. 

The underlined word, 'attention' is an abstract noun which means notice/thought/interest. The phrase, 'pay attention' means to watch, listen or notice something/someone with care or interest. The associated verb is, 'attend' which means: To help/provide service to someone as a part of one's job. The correct verb form is used in Option B, which is the correct answer. 

'Complained' is the simple past tense of the verb, 'complain'. Its noun form is, 'complaint'. Hence, option B is the correct answer. 

The abstract noun form of the adjective, 'scented' is 'scent'. It means a pleasant, natural smell. Hence, option D is the correct answer.

The word, 'supplies' in the given sentence is the plural of the noun, 'supply' . Its verb form is also 'supply'. 'Supplied' is the past tense form of the verb, which means : Provided/Made (something needed or wanted) available to someone. Hence, the sentence, 'The villagers supplied food ...to the injured soldiers' as used in option C is correct. 

The abstract noun form of the adjective, 'accidental' is 'accident'. 'Accidental' means happening by chance or unexpectedly. The related word, 'accident' means: An event which happens by chance or that which has no deliberate cause. Hence, option B is the correct answer.

The correct answer is Option A.

The correct answer is Option A.

The correct answer is Option A.

The correct answer is Option A.

The correct answer is Option D.

The correct answer is Option B.

Strengthened is the verb form of strength. So, Option A is correct. Words like strengthify and strengthfully don't exist. And Strong is an adjective. Thus, the rest of the options cancel out.

We should always keep in mind the tense of the original sentence and shouldn't ever try to change the tense while rewriting. Succeed is the verb form of 'success'. The sentence being in past tense, -ed is added to the verb and it becomes 'succeeded'.  So, Option C becomes correct.
Option A is incorrect because successfully is an adverb.
Option B is incorrect because successful is an adjective.
Option D is incorrect because the word, seccessness, doesn't exist.

The tense of the original sentence should never be changed. In this sentence, 'smell' has been used as a noun as if the sweet smell is a quality of the mangoes.
Option A is correct because the word 'smell' suggests the action of smelling. That is why it is a verb.
Option B is incorrect because the word smellfully does not exist.
Option C is incorrect because smelling is used an an adjective.
Option D is incorrect because the sentence construction is in itself wrong.

We have to keep in mind the tense of the original sentence. We can't change the tense while we rewrite. Now, the noun 'agreement' is derived from the verb 'agree'. As the sentence is in past tense, the appropriate verb form would be 'agreed' and not 'agrees'. That is why Option C becomes correct and Option A cancels out.
Option B is incorrect because agreeably is the adverb form.
Option D is incorrect because agreeingly does not exist.

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'charlatan' is a noun. Some words can be changed into an adjective by adding suffix - 'ic' or 'ish' at the end of the word. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'repulsion' is a noun. Some words can be changed into an adjective by adding suffix - ive at the end of the word. Thus, the adjective form of the given word is 'repulsive'. This is made from the verb 'repulse' where 'e' is removed and ive is added. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'reverence' is a noun. Some words can be changed into an adjective by adding suffix - able at the end of the word. Thus, the adjective form of the given word is 'reverable'. Here, reverable is made from the verb 'revere'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'cacophony' is a noun. Some words can be changed into an adjective by adding suffix - 'al' or 'ous' at the end of the word. Thus, the adjective form of the given word is 'cacophonical' or 'cacophonous'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'rigor' is a noun. Some words can be changed into an adjective by adding suffix - 'ous' at the end of the word. Thus, the adjective form of the given word is 'rigorous'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'conflagration' is a noun. Some words can be changed into an adjective by adding suffix - 'ive' at the end of the word. Thus, the adjective form of the given word is 'conflagrative'.  

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'incongruity' is a noun. The adjective form of the given word can be formed by removing 'y' and adding suffix - ous at the end of the word. Thus, the adjective form of the given word is 'incongruous'. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'deference' is a noun. Some words can be changed into an adjective by adding suffix - 'ial' at the end of the word. Thus, the adjective form of the given word is 'deferential'.

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'parody' is a noun. Some words can be changed into an adjective by removing 'y' and adding suffix - able at the end of the word. 

The noun is a name of a person, place or a thing. The adjective modifies or describes the noun. The word 'innocuity' is a noun. The adjective form of the given word can be formed by adding suffix - uous at the end of the word. Thus, the adjective form of the given word is 'innocuous'. 

The noun form proposal is derived from the verb propose. The other words like proposies, proposalments and proposefully don't exist. Proposed is the past tense of the verb propose. So, Option D is correct.