Which word best completes the sentence: 'The scientist conducted the experiment with _____ precision.'

Correct Answer: C

Rationale: In this sentence, the word 'utter' best fits as it emphasizes the absolute and complete accuracy of the experiment. 'Utter' means total or complete, and in this context, it conveys a sense of total precision. Choices A, B, and D do not carry the same connotation of absolute precision. 'Extreme' and 'remarkable' may imply a high level of precision but not necessarily absolute or complete precision. 'Great' is a more general term that does not specifically emphasize the completeness of the precision required in conducting the experiment.

Correct Answer: B

Rationale: The correct spelling for the word 'to submit or agree without protest' is 'acquiesce,' making option B the correct choice. Choice A, 'Accommodate,' refers to providing lodging or fitting in with someone's needs. Choice C, 'Perceive,' means to become aware or conscious of something. Choice D, 'Dilemma,' is a situation requiring a choice between equally undesirable alternatives. Therefore, options A, C, and D are spelled correctly but are not the correct answer based on the definition provided in the question.

Correct Answer: B

Rationale: In this sentence, 'results' is the direct object of the verb 'awaited,' functioning as a noun. Hence, option B, 'Noun,' is correct. The students were eagerly waiting for what? The results - which makes 'results' a noun in this context. Choices A, C, and D are incorrect. 'Results' is not describing a verb, an adjective, or an adverb in the sentence; it is the object of the students' anticipation, indicating a noun.

Correct Answer: A

Rationale: Option A correctly uses the past perfect tense to show an action that was completed before another past action. In this sentence, 'the party had already begun' indicates that the party started before 'I arrived.' This structure is typical of the past perfect tense. Choice B uses the past perfect tense but does not demonstrate the sequence of actions in the past. Choice C uses the future perfect tense, indicating completion of an action by a future time. Choice D uses the past perfect continuous tense, not the simple past perfect tense required by the question.

Correct Answer: C

Rationale: The correct answer is 'effected.' In this context, 'effected' means to produce a result or impression, which aligns with the emotional impact of the strangers' kindness. The other choices are incorrect: A) 'affected' might seem plausible, but 'effected' is a better fit as it implies a direct result. B) 'infected' is incorrect as it implies a negative or harmful impact, which is not the intended meaning. D) 'defected' means to abandon allegiance, which is not relevant in the given sentence.