Correct Answer: A

Rationale: The simple subject is the noun or pronoun that the sentence is about. In this sentence, the subject is 'man' because it is the entity performing the action of watching. 'The flustered man' is a noun phrase but not the simple subject as it includes an article and an adjective. 'Watched' is a verb and 'train' is the object of the action, not the subject. Therefore, 'man' is the correct simple subject in this sentence.

Correct Answer: A

Rationale: The correct use of a semicolon is to join two closely related independent clauses. Choice A is the only option that correctly uses a semicolon to connect two independent clauses: 'I have a big test tomorrow' and 'I can't go out tonight.' Choice B incorrectly uses a comma instead of a semicolon. Choice C adds an unnecessary 'and' after the semicolon, which disrupts the correct punctuation usage. Choice D introduces a contradictory conjunction 'but' after the semicolon, which is not necessary for the given context. Therefore, the correct answer is A.

Correct Answer: A

Rationale: The correct answer is A. In sentence A, the modifier 'Running through the park' is misplaced because it makes it seem like the dog was the one running through the park rather than the intended meaning that the speaker was running through the park. In choices B, C, and D, the modifiers are correctly placed, providing clear and concise descriptions without causing confusion about who or what is performing the action.

Correct Answer: B

Rationale: The correct answer is 'But.' In this context, 'But' is a conjunction that correctly connects the two independent clauses, indicating a contrast. The first sentence states that Brady had never skied before, while the second sentence reveals that she performed well on the slopes, showing a surprising contrast to her lack of experience. 'Unless' implies a condition that needs to be met for a particular situation, which is not relevant here. 'Therefore' indicates a conclusion or result, which does not fit the context of the contrasting statements. 'Before' is a preposition that doesn't serve the purpose of connecting the two ideas presented in the sentences.

Correct Answer: D

Rationale: In the sentence, 'personally' is modifying the verb 'take,' indicating how the action is done. Adverbs often answer questions like how, when, where, and to what extent. 'Personally' in this context is an adverb, making choice D the correct answer. Choices A, B, and C are incorrect as 'personally' does not function as an article (a, an, the), adjective (describing a noun), or verb (action word) in this sentence.