Correct Answer: C

Rationale: The word 'initial' is used incorrectly in the sentence. The correct word that should be used here is 'initially.' 'Initially' is an adverb that is used to indicate the beginning or starting point of an action, while 'initial' is an adjective that describes something as happening at the beginning of a process. In this context, the correct usage would be 'He received an oral dose initially, followed by an IV drip.' The other choices ('received,' 'dose,' and 'followed') are used correctly in the sentence and do not need any corrections.

Correct Answer: B

Rationale: The correct answer is 'to roll.' In this sentence, 'started' is followed by the infinitive form of the verb 'to roll.' The construction 'started to roll' indicates the beginning of the action of the wheelchair moving down the corridor. Choice A ('roll') is incorrect as it lacks the infinitive marker 'to' needed after 'started.' Choice C ('rolled') is incorrect as it is the past tense form of the verb, not suitable for the sentence's context. Choice D ('will roll') is incorrect as it indicates a future action, not the past action indicated by 'started.'

Correct Answer: B

Rationale: Option B, 'When I was seven, my mother moved me to a new school,' is the clearest sentence as it directly and clearly states that when the speaker was seven, their mother moved them to a new school. This sentence clearly indicates the age of the speaker and who initiated the action, making it the most precise and easy to understand among the choices. Choices A, C, and D are incorrect because they either incorrectly position the age or the action initiator, leading to ambiguity and confusion in the sentence.

Correct Answer: B

Rationale: The subject 'The nursing staff' is a collective noun that is considered singular. Therefore, the correct verb form to use is 'hopes.' The verb 'hopes' agrees with the singular subject, making the sentence grammatically correct. Choice A ('hope') is incorrect because it is not the correct verb form for a singular subject. Choice C ('hoping') is incorrect as it is a gerund and does not function as the verb in this sentence. Choice D ('does hope') is incorrect as it introduces unnecessary emphasis and does not match the subject-verb agreement required in the sentence.

Correct Answer: B

Rationale: The correct pronouns to use as objects of the verb 'told' are 'her' and 'me.' Therefore, the grammatically correct sentence is: 'Dr. Chu told her and me to take a break for lunch.' 'Her' is used as the object form of 'she,' and 'me' is the object form of 'I' in this context. Choice A is incorrect because 'me' should come before 'her' in the sentence. Choice C is a duplicate of the correct answer. Choice D is incorrect because 'she' should be 'her' and 'I' should be 'me' to function as objects in the sentence.