Correct Answer: B

Rationale: The correct answer is B: 'Swollen.' Distended means swollen or expanded, not narrow (A), flat (C), or dilated (D). When a blood vessel is distended, it is enlarged or swollen due to increased pressure.

Correct Answer: B

Rationale: The correct answer is B: 'Inducing sleep.' The term 'soporific' refers to something that causes sleepiness or drowsiness, leading to sleep. Choices A, C, and D are incorrect because they do not accurately represent the meaning of soporific. Choice A is the opposite since it means causing excitement, not drowsiness. Choices C and D are related to pain relief, which is not the primary association with the term soporific.

Correct Answer: B

Rationale: The term 'Impaired' means diminished or lacking usual quality. This choice is correct as it accurately reflects the meaning of the word. Choices A, C, and D are incorrect. Choice A, 'Increased capability,' is the opposite of impaired. Choice C, 'Hyperactive,' refers to excessive activity rather than a lack of usual quality. Choice D, 'Stronger than usual,' does not capture the meaning of impaired.

Correct Answer: B

Rationale: The sentence 'Somebody left his or her jacket on the train.' is grammatically correct and respects gender neutrality. 'Somebody' is singular, so the pronoun 'their' in choice A is incorrect. Choice C changes the subject from 'somebody' to 'his,' making it grammatically incorrect. Choice D is grammatically correct, but it is less concise and more awkward than choice B, which smoothly combines 'his' and 'her' for gender-neutral language.

Correct Answer: B

Rationale: The correct answer is B, 'Burdensome.' The term 'onerous' is used to describe something that is burdensome, oppressive, or difficult to deal with. Choices A, C, and D are incorrect because 'easy,' 'interesting,' and 'relaxing' do not convey the same meaning as 'onerous.'