—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
网友回答
(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。