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Ans (3): Chance, subject

The sentence talks about credit/debit card fraud and the susceptibility of the owners of such cards to frauds. The highlighted words are incorrect as they do not fit in the context - you cannot be ‘invited’ to fraud. (1) is incorrect as both the options fail to make the sentence meaningful; strangle - choke. (2) is incorrect as the first word in unsuitable in the context and the second word does not fit grammatically - ‘undergoing to’ is incorrect grammar. (3) is correct as both the words can replace the highlighted words and make the sentence meaningful. (4) is incorrect as both the words do not fit in the given context (3) is the right answer Subject - Likely or prone to be affected by (an occurrence typically an unwelcome or unpleasant one)

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Ans (2): Primary, impact

The sentence tells us that global efforts to control intestinal worms are targeted towards children. The highlighted words do not fit as they fail to make the sentence coherent. (1) is incorrect as the word ‘distinction’ does not convey the required meaning. (2) is correct as both the words can fit in the context of the given sentence. (3) is incorrect as both the words ‘ordinary’ and ‘caution’ fail to make the sentence meaningful. (4) is incorrect for the same reason as (3).

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Ans (3): Promote, placing

The sentence talks about the indiscriminate use of antibiotics and the harm that such use can cause. The highlighted words are incorrect as they fail to make the sentence coherent. (1) is incorrect as both the words fail to make the sentence meaningful. (2) is incorrect as the word ‘surprise’ does not convey the required meaning in the context (3) is correct as both the words can replace the highlighted words and make the sentence meaningful (4) is incorrect for the same reason as (1).

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Ans (3): Foundation, accessible

The sentence tells us how machine learning is integral to artificial intelligence. It also praises machine learning. The highlighted words are incorrect as they do not convey the required meaning in the given context; captivate - attract or charm. (1) is incorrect as both the words do not fit in the given context. (2) is incorrect as the first word does not convey the required meaning here. (3) is correct as both the words can successfully replace the highlighted words while conveying the required meaning. (4) is incorrect for the same reason as (1).

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Ans (4): Infected, claimed

The sentence talks about the terrible effects of the Spanish flu. The highlighted words are incorrect as they do not make the sentence meaningful. (1) is incorrect as both the words do not fit in the given context; incite - encourage or stir up (violent or unlawful behaviour); calm up - abruptly stop talking. (2) is incorrect for the same reason as (1) - a virus cannot 'calm' the lives of people. (3) is incorrect as the first word does not make the sentence coherent. (4) is correct as both the words convey the required meaning in the given context.

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Ans (4): rich, rather

The word ‘moneyed’ is an adjective that means ‘rich’. However, a verb will be required in its place with ‘can’. The second word ‘its’ is a possessive adjective that is again inapt grammatically. The appropriate replacements are ‘afford’ (meaning ‘have enough money to pay for’) and ‘itself’ (an emphatic pronoun here).

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Ans (1): grips, should

The word ‘firmly’, an adverb, does not fit the sentence to convey a proper meaning. The correct word in its place will be ‘grips’ - ‘getting to grips’ means ‘making an effort to understand’. The other word ‘can’ is a modal verb that is used more to indicate ability and to a lesser extent, permission. Here the sentence indicates probability, and the appropriate modal verb in such cases is ‘should’. (1) is the right answer. (2) will eliminated as ‘attention’ won’t take the preposition ‘to’ before it and other options make the sentence incoherent.

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Ans (3): simply, ahead

The word ‘justly’ means ‘what is morally right’ and is contextually inappropriate in the sentence. It needs to be replaced with an adverb -- ‘just’, ‘simply’ and ‘merely’ are all appropriate. The second word in bold ‘forwarded’ is a past tense verb ‘send (something) further’ and is grammatically inadequate in the sentence -- it needs to be replaced with an adverb, and the only one from the options that makes contextual sense is ‘ahead’. The other words are not apt since they do not take the preposition ‘of’ after it.

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Ans (2): jump, only

The word ‘climb’ does not make sense in the sentence -- ‘climb into industry’ is meaningless. The second word ‘any’ with ‘way’ means ‘in any case’ and is meaningless in the sentence. The correct replacements are the words ‘jump’ and ‘only’ in (2).Foray- a sudden attack in the enemy territory.

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Ans (4): question, tolerated

The first word ‘solution’ means ‘the process of solving a problem’ and is contextually meaningless in the sentence. It needs to be replaced by a noun, and from the options, ‘doubt’ and question’ can fit. The second highlighted word ‘looked’ too makes no sense in the sentence. ‘endurance’ makes the sentence contextually incorrect and should have taken the verb form to correctly fit in the sentence. The replacement will be ‘tolerated’. Hence (4) is the right option having both the appropriate words.