问题补充:
—Must I do my homework now, Mum?
—. You can do it tomorrow.
A. No, you needn’t
B. No, you mustn’t
C. Yes, you need
D. Yes, you must
答案:
(答案→)A. No, you needn’t
B. No, you mustn’t
C. Yes, you need
D. Yes, you must
解析:考查情态动词的用法。根据答语“可以在明天做”,可知现在没必要做;用must提问的否定回答,用needn’t。