题干
— Must I finish that work today?
— No, you _____. You may finish it in three days.
A：mustn't
B：needn't
C：shouldn't
D：couldn't
答案(点此获取答案解析）
B
— Must I finish that work today?
— No, you _____. You may finish it in three days.
A：mustn't
B：needn't
C：shouldn't
D：couldn't
