You________ hand in your homework now. You can do it tomorrow.
A.mustn't B.can't C.won't D.needn't
If you ________ fall asleep, drink some milk and listen to some soft music until you feel sleepy.
A.can't B.needn't C.mustn't D.shouldn't
Explaining your thoughts calmly ________ show your parents that you've grown up.
A.should B.can C.need D.must
There is too much n________ outside the room. So I can hardly fall asleep.
Sanya is a beautiful p________. I want to spend my vacation there this winter.
The q________ is not difficult at all. All of you can solve it easily.
