Question

【题目】—Must I do my homework at once? —No, you___.

A. needn't B. mustn't C. can't D. may not

Answer 1

【答案】A

【解析】句意：--我必须马上做完作业吗？--不必了。A. needn't不必； B. mustn't禁止，不应该；回答Must I…?的否定回答可以用No, you. needn't/No, you. don't have to； C. can't不可能； D. may not也许不。以must引出的一般疑问句，其肯定回答一般用must来回答。故选A。