_____ are very ancient people.

Correct Answer: A

Rationale: The correct answer is 'Chinese.' In the context of ancient civilizations, 'Chinese' is appropriately used to refer to a very ancient culture like the Shang dynasty (c. 1600-1046 BC) or the Zhou dynasty (1046-256 BC). The other choices ('The Greeks,' 'Romans,' and 'Egyptians') are also ancient civilizations, but they are not the best fit in the given sentence as they do not match the description of 'very ancient people.' The Greeks, Romans, and Egyptians are ancient too, but 'very ancient people' specifically points towards Chinese civilization during its early periods. Therefore, 'Chinese' is the most suitable option.

Correct Answer: B

Rationale: The correct answer is B: 'Guarded.' Circumspect means to be cautious or guarded. In this context, being circumspect with patient records implies being careful and cautious in handling them, maintaining confidentiality and privacy. Choices A, C, and D are incorrect because circumspect does not mean acting carelessly, reckless, or neglecting; instead, it suggests being watchful and discreet.

Correct Answer: A

Rationale: The correct answer is A: 'He is a legal resident of the United States.' In this sentence, 'legal' is used to describe the type of resident he is, making it an adjective. The other choices use 'legal' as part of a noun phrase or an adverbial phrase, not as an adjective. Choice B uses 'legal' to describe the type of action, making it a noun adjunct. Choice C uses 'legal' to describe the legality of the action, making it part of an adjectival phrase. Choice D uses 'legal' to describe the manner in which he acted, making it an adverb.

Correct Answer: A

Rationale: The correct answer is A: 'She had one goal: to win the race.' This sentence uses a colon to introduce the purpose or explanation that follows. It is a grammatically correct use of a colon. Choice B is incorrect as the colon is not needed after 'needs'; a list of items follows, which does not require a colon. Choice C is a simple statement of time and does not require a colon. Choice D is also incorrect since a colon is not suitable after 'bought'; the items bought are listed without the need for a colon.

Correct Answer: B

Rationale: Labile means something that changes rapidly and often. In this context, 'Stable' (Choice A) is the opposite of labile, 'Unchanging' (Choice C) and 'Rarely changing' (Choice D) do not capture the essence of labile. Labile is specifically used to describe something that is easily altered, constantly changing, or unstable, hence the most suitable choice is 'Changing rapidly and often' (Choice B).

Correct Answer: A

Rationale: The correct answer is A: 'To voluntarily refrain from something.' Abstain means to choose not to do or have something, especially something you like or enjoy. Choices B, C, and D are incorrect because abstain does not mean to consume something, to eat, or to encourage. It specifically refers to the act of voluntarily refraining from an action or practice.

Correct Answer: D

Rationale: The correct answer is D, 'effect.' The verb 'effect' is defined as to bring about, cause to happen, accomplish, or make. It describes the action of making something happen or producing a result. Choices A, B, and C are incorrect because 'affect' means to influence, 'accept' means to receive willingly, and 'expect' means to anticipate. Therefore, the correct choice is D, 'effect.'

Correct Answer: B

Rationale: The correct answer is B: Larynx. The voice box is commonly known as the larynx, which plays a vital role in producing sound. The trachea (choice A) is the windpipe that carries air to and from the lungs, not the voice box. The pharynx (choice C) is the throat passageway for air and food, distinct from the voice box. The esophagus (choice D) is the tube that carries food and liquids from the throat to the stomach, not related to the voice box. Therefore, the larynx is the specific anatomical structure referred to as the voice box.

Correct Answer: B

Rationale: Another word for 'SITE' is 'Location.' In this context, 'site' typically refers to a place or area, making 'Location' the most appropriate synonym among the given choices. Choice A, 'Severity,' does not relate to the meaning of 'site' as a place or area. Choice C, 'Fortunate,' and Choice D, 'Appearance,' are also unrelated to the concept of 'site,' making them incorrect choices.