Correct Answer: B

Rationale: The correct answer is B because it maintains subject-verb agreement. In this sentence, 'she is' agrees with 'the lead scientist,' and 'does' agrees with 'she.' Choices A, C, and D have subject-verb agreement errors. In choice A, 'write' should be 'writes' to match the singular subject 'The lead scientist,' and 'does' should be 'do' to match the plural 'scientists in the group.' Choice C also has the same subject-verb agreement error as A. In choice D, 'do the research' should be 'does the research' to match the singular 'every scientist in the group.'

Correct Answer: A

Rationale: The correct answer is A because it correctly uses the second-person narrative voice by addressing the reader as 'you,' directly involving them in the action. Choices B, C, and D use first-person ('I'), third-person singular ('he'), and third-person plural ('they') perspectives, respectively, which do not align with a second-person narrative voice. It is essential to identify the perspective being used in a sentence to determine if it matches the criteria specified in the question.

Correct Answer: D

Rationale: In this sentence, 'increasingly' is functioning as an adverb. Adverbs modify verbs, adjectives, or other adverbs to describe the manner, degree, or frequency of an action. In this case, 'increasingly' describes how the difficulty of the hike was growing as we approached the mountain top. Choice A, 'Adjective,' is incorrect as adjectives modify nouns or pronouns, not verbs. Choice B, 'Interjection,' is also incorrect because interjections are words used to express strong emotions or sentiments, not to describe actions or qualities. Choice C, 'Verb,' is incorrect as 'increasingly' is not a verb; it does not express an action or state of being.

Correct Answer: C

Rationale: Option C is the correct answer as it uses introductory punctuation correctly by placing a comma after the introductory clause 'Since we only have ten minutes.' Commas are used to separate introductory phrases or clauses from the main clause in a sentence. Option A is incorrect as it lacks the necessary comma after the introductory phrase. Option B uses a semicolon, which is not typically used in this context. Option D uses a colon, which is not appropriate for introducing the following clause in this sentence structure.

Correct Answer: B

Rationale: An indirect quotation does not require quotation marks as it paraphrases what was said without directly quoting it. Sentence B, 'John F. Kennedy announced plans to go to the moon,' is an example of an indirect quotation as it conveys the information without using the exact words spoken by Kennedy. Choices A, C, and D directly quote the individuals and thus require quotation marks, making them incorrect answers.