English

The correct preposition to use with 'used' in this context is 'to' when followed by a gerund (verb+ing). The phrase 'used to speaking English' means being accustomed to speaking English. Option C is correct, while 'of' is incorrect here, and 'Both B & C' is invalid because only 'to' fits grammatically.

The word "conversant" means familiar or knowledgeable about a subject. Its antonym is "inexperienced," which means lacking knowledge or skill in a particular area. The other options do not directly oppose the meaning of "conversant."

The word "emolument" means a profit, salary, or fee from employment or office. Among the options, "profit" is the correct synonym.

The practice of employing spies in war is called espionage, which involves gathering secret information about enemies. The other options are unrelated words.

A 'harangue' is a noisy, bombastic speech addressed to a large assembly, often lengthy and aggressive. The other options do not specifically mean a loud or bombastic speech: 'rhetoric' refers to the art of effective speaking or writing, 'cacophony' means harsh or discordant sounds, and 'oration' is a formal speech but not necessarily noisy or bombastic.

The young one of a horse is called a colt (male) or filly (female). Among the options, 'colt' correctly refers to a young male horse, while the others refer to young animals of different species.

The correct preposition to use after 'different' when comparing is 'from'. Therefore, 'Sana is different from other girls' is the correct sentence.

The word 'indispensable' means absolutely necessary or bound to be done, fitting the meaning of 'which is bound to be done.' The other options do not convey this meaning: 'soliloquy' is a speech, 'sinecure' is a position requiring little work, and 'indelible' means permanent or unforgettable.

The phrase 'in no way detracts from' means that the humid climate does not reduce or lessen the beauty of the place. 'Detracts' is the correct verb here, as it means to diminish the worth or value of something.

The phrase 'to run away with a lover' specifically means to 'elope,' which is to run away secretly to get married, making option D the correct choice.