班级：_________ 姓名：_________ 考号：_________
1．—Must I stay at home, Mum?
—No, you ______.
C．don't D．may not
2．—Who is the man over there? Is it Mr Li?
—No, it ______ be him. Mr Li has gone to America.
A．mustn't B．may not
3．To make our city more beautiful, rubbish ______ into the river.
A．needn't be thrown B．mustn't be thrown
C．can't throw D．mustn’t throw
4．You_____ to the meeting this afternoon if you have something important to do.
A．needn’t to come B．don’t need come
C．don’t need coming D．needn’t come
5．You’d better _____late again.
A．don‘t B．not be
C．not being D．won’t be
6．You _______ smoke in the hospital.
A．needn’t B．oughtn’t to
C．ought to not D．may not
7．—Another cup of coffee?
—No, thanks. I _____ be off. Mary is waiting for me.
A．can B．may C．must D．might