In the following sentence, a part of the sentence is bolded. Choose the correct alternative that best improves the bolded part.
I will depart immediately, mustn't I, to avoid missing the final flight connection to the international conference in London?
Show answer & explanation
Correct answer: D
Explanation
Correct Answer: I must depart immediately
Explanation:
• A question tag must correspond to the auxiliary or modal verb used in the main clause.
• Since the question tag in the given sentence is mustn't I, the main statement must contain the modal verb must.
• The modal must is followed by the base form of the verb (V1): must + depart.
• Therefore, replacing I will depart immediately with I must depart immediately makes the sentence grammatically correct.
Quick Tip: A positive statement takes a negative tag using the same auxiliary verb (e.g., You must go, mustn't you?).