Correct Answer: C

Rationale: The phrase 'to be' is not used correctly in the sentence. The correct phrase should be 'to be' in this context. The infinitive form of the verb 'be' is used after 'to.' In this sentence, the infinitive form 'to be' should follow 'had' to form the correct structure. Choices A, B, and D are all used appropriately in the sentence, focusing on the order and placement of the words in the context provided.

Correct Answer: A

Rationale: The word 'because' indicates the reason or cause for something. In this context, it logically connects the meteorologist's forecast of rain with Sheila bringing her umbrella to work. The conjunction 'because' explains the relationship between the rain forecast and Sheila's action of bringing an umbrella, making it the most suitable word for the sentence. Choices B, C, and D do not fit the context as they do not provide a logical reason for Sheila's action.

Correct Answer: B

Rationale: The correct answer is 'B - resting' because it is the present participle form of the verb 'rest' and fits appropriately in the sentence structure 'After resting for an entire afternoon, the resident felt revitalized.' The present participle is used to show an ongoing action that happened before the feeling of revitalization. Choice A 'having rest' is incorrect as it does not convey the continuous action needed in this context. Choice C 'rested' is incorrect as it is the past tense form and does not match the tense of the sentence. Choice D 'rest' is incorrect as it is the base form of the verb and does not provide the needed -ing form for the sentence.

Correct Answer: A

Rationale: The phrase 'as long as' is used to indicate a condition that needs to be met for the main clause to happen. In this sentence, the radiology department sends Troy to pick up lunch only if it isn't too busy at the office, so 'as long as' is the most suitable phrase to convey this conditional relationship. Choice B, 'as if,' implies a hypothetical comparison rather than a condition. Choice C, 'after,' suggests a sequence of events rather than a condition. Choice D, 'unless,' introduces a negative condition which does not fit the context of the sentence.

Correct Answer: D

Rationale: The verb 'meet' is the correct option in this context as it completes the sentence structure 'waiting to meet with the doctor' in a grammatically correct way. The sentence requires an infinitive verb form to convey the intended meaning of Miguel and I waiting to have a meeting or appointment with the doctor. Choices A, B, and C are incorrect because 'be met' changes the meaning, 'meeting' is a gerund form which doesn't fit the sentence structure, and 'met' is a past tense form that doesn't match the present tense context of the sentence.