‘Only’ as a conjunction means ‘except that’, ‘but’ or ‘were it not’. This is the correct choice because in this sentence, it indicates that ‘were it not for the squint’, Shalu would be pretty.

The subordinating conjunction 'nevertheless' expresses contrast between two statements. It is used to join two such statements that oppose each other in thought.

The preposition 'of' shows the relation between the attribute expressed and between the noun 'victim' and 'the authorities apathy'.

This is an illative conjunction and is used when expressing an inference. This is the correct option. It is raining heavily, so I will take an umbrella with me.

This is the correct option. The preposition ‘to’ indicates a relationship and indicates a position of somebody or something. It is a preposition of direction.

Because' is a conjunction of cause or reason.

This is the correct option. This subordinate conjunction is a conjunction of time. It is the correct form of this type of a sentence, where the conjunction joins the clause to another on which it depends for its full meaning.

This conjunction indicates the cause or reason for something. This is a preposition conjunction that indicates a happening at some point or points after the period of time or event mentioned. Thus, I have been in such a pickle since I saw you last.

This is the correct option. This is a preposition of place and in this context indicates that somebody or something is going through a particular process or experience, e.g. He is labouring under a misapprehension.

The modal 'must' expresses obligation or necessity. Thus, this is the correct option in this context.

This is the correct option. This is a subordinate conjunction of condition. A clause cannot happen unless a condition is met. Greivances cannot be redressed unless they are known.

This is the correct option. This is a disjunctive coordinating conjunction. It indicates an alternative or choice between two alternatives. She must repent, or she will be punished. 

This is the correct option. This is a coordinating conjunction. This sentence contains two independent statements of equal rank. Thus, a conjunction is required to join these two clauses of equal rank. Men have fought for their country, and they have died for their country. 

This is the correct option. This is a preposition of place and indicates that something or somebody moves or is moved from outside to inside or toward the inner part of something. He has retired into private life.

This is the correct option. This is an illative coordinating conjunction and expresses inference. The conditions in one clause must be met before the conditions in the second clause are completed. Thus, blessed are the merciful, for they shall obtain mercy.