题干
——Must we finish the exercise today? ——No, you________.
A：mustn't
B：don't have
C：don't have to
D：needn't to
答案(点此获取答案解析）
C
——Must we finish the exercise today? ——No, you________.
A：mustn't
B：don't have
C：don't have to
D：needn't to
