English

The word 'cogent' means clear, logical, and convincing. Among the options, 'strong' best matches this meaning as a synonym, while the others do not.

The correct phrase is 'There is no need to buy traveller’s cheques...' because 'there is' is used to indicate the existence of something, which fits the context of expressing that buying traveller’s cheques is unnecessary.

The correct preposition to use with 'staring' in this context is 'at'. 'Staring at me' is the proper phrase indicating that Sana was looking fixedly in my direction.

The word 'contemporary' means 'living at the same time' or belonging to the same time period, especially when referring to people or eras. 'Concurrent' means happening at the same time, often implying a direct relationship between events or actions, but it is more about simultaneous occurrence rather than living or existing together in time. 'Coincident' means occurring together in time or space without necessarily implying a causal connection. 'Concomitant' refers to something occurring simultaneously with another but not necessarily caused by it, often used in medical or technical contexts. Therefore, the best answer for 'living at the same time' is 'contemporary.'

When using verbs of movement such as 'go' with 'home,' standard English does not use a preposition. The correct phrase is 'I am going home,' not 'I am going to home.' Therefore, none of the prepositions 'at,' 'to,' or 'towards' are correct in this context. The best choice among the given options is 'None,' meaning no preposition is needed.

The word "contemplative" means deeply thoughtful or reflective, so the synonym "thoughtful" (option C) is the correct choice. The other options do not share this meaning.

The term 'handwritten' specifically refers to matter written by hand. 'Manuscript' generally means a document written by hand but can also refer to typed or printed drafts, so 'handwritten' is the most precise answer here.

The correct word to use in this context is 'much' because it modifies comparative adjectives like 'older'. 'Many' is used with countable nouns, and 'very' does not fit naturally before 'older' in this sentence. Therefore, 'much older' is the correct phrase.

The word "impervious" means not allowing fluid to pass through or not affected by something. Its antonym is "prone," which means likely to be affected or susceptible to something, making option C correct.

The word "surmise" means to suppose something is true without having evidence; it is synonymous with "a guess." The other options do not accurately reflect this meaning.