1．Must I wait till he comes back ? No, you ________ .
2．You ________ not make so much noise in the hospital.
3．Can you ride a bike ? No, I ________.
4．Do you speak English ? Yes, I ________ .
5．________ I go home now ? No, you stay here.
6．________ you like to help me ?
7．My mother is ill. I ________ stay at home and look after her.
8．________ I use your car ? Yes, you ________
9．________ we begin our class now ?
1．You must wash the dishes. =You____ ____ wash the dishes.
2．She can cook well. =She ____ ____ ____ cook well.
3．Wash your face at once. =You ________wash your face at once.
4．They couldn't find any secrets（秘密）.
=They ____ not ____ to find any secrets.
5．You should be here on time. =You ____ ____ be here on time.
________ return the book now. You can keep it till next week.
A． can't B．mustn't C．needn't D．may not
I leave this door open at night ? No, you ________ .
A．should better not B．would better not
C．had better not
up. He ________ for us at the station.
A． must wait B．must be waiting
C．should wait D．should be waiting
food must be good. No, it be ________ good.
A．must not B．needn't
shirt is rather dirty. ________ I wash it for you ?
A．Do B．Will C．Have D．Shall