Question

【题目】—May I go birdwatching with my classmates in the Nature Reserve?
—No. You _________ until you have finished the report.
A.needn't
B.mustn't
C.won't
D.shouldn't

Answer 1

【答案】B
【解析】句意：—我可以和我们同学们呢去自然保护区观鸟吗？—不，直到你已经完成了报道你才可以。A. needn't不必；B. mustn't禁止；C. won't不会；D. shouldn't不应该。根据题意，故选B。