题目内容
May I do the washing now? No, you ________.
[ ]
A.may not
B.needn't
C.mustn't
-May I do the homework tomorrow?
-No, you ________.You should hand in before class tomorrow.
mustn't
needn't
couldn't
— May I do the homework tomorrow?
一 No, you______. You should hand in before class tomorrow.
A. mustn't B. needn't C. couldn't
— May I do the homework tomorrow?一 No, you______. You should hand in before class tomorrow. A. mustn't B. needn't C. couldn't