After the policeman _____ for several miles, he finally caught up with the man who had stolen the purse.

Correct Answer: B

Rationale: In this sentence, the correct option is 'had run' as it is the past perfect tense, which is used to indicate an action completed before another past action. The sentence structure requires the past perfect form to show that the running occurred before catching up with the man. 'Ran' (choice A) is in simple past tense and does not convey the sequence of events correctly. 'Chased' (choice C) is the simple past tense of the verb 'chase' and does not align with the past perfect tense needed in the sentence. 'Drove' (choice D) is incorrect as it refers to using a vehicle to pursue someone, whereas the context of the sentence indicates running on foot.

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 'buy' because it is the appropriate verb for purchasing a car. In this context, the person saw a car at the Ford dealer and decided to buy it, indicating ownership. Choices B, C, and D are incorrect because 'rent,' 'lease,' and 'sell' do not fit the context of deciding to acquire a car for ownership. Renting and leasing involve temporary possession, while selling involves transferring ownership to another party.

Correct Answer: A

Rationale: Children depend on their parents for providing basic needs like food, clothing, and shelter. 'Shelter' refers to the physical protection and housing that parents are responsible for providing to their children. While security, guidance, and affection are also important aspects of parenting, in the context of the question, the most essential need after food and clothing is shelter.

Correct Answer: A

Rationale: The correct answer is A: 'This door will remain unlocked when the office is occupied.' This choice provides a clear and grammatically correct revision of the original sentence. Choice B is incorrect due to the missing 'will' before 'remain' and 'the' before 'office.' Choice C is incorrect as it does not include 'the office,' making it less specific. Choice D is incorrect as it uses 'while' instead of 'when,' changing the intended meaning.