17．----I ____ keep the book a little longer?

　----Yes, you can.

　A．Must

　B．Need

　C．Can

　D．Should

16．----Will you come to see the film with me?

　----____.

　A．No, I don't

　B．sorry, I can't

　C．Yes, I am

　D．Yes, I wasn't

15．____ to have your lunch with me this afternoon?

　A．Would you like

　B．If you like

　C．Did you like

　D．Are you like

14．He can hardly see anything, ____ ?

　A．can't he

　B．could he

　C．can he

　D．couldn't he

13．----You can't swim, can you?

　----____.

　A．Yes, I can't

　B．No, I can't

　C．Yes, you can

　D．No, I can

12．I haven't brought my dictionary with me. ____ I use yours?

　A．Must

　B．Shall

　C．May

　D．Need

11．“Must I come here before eight o'clock?”“No, you ____ .”

　A．can't

　B．couldn't

　C．mustn't

　D．needn't

10．He isn't in the school. I think he ____ be ill.

　A．can

　B．shall

　C．must

9．---- ____ I come in, Mr Green?

　 ----Yes, come in, please.

　A．Must

　B．May

　C．Will

　D．Need

8．You ____ worry about your son. He will get well soon.

　A．needn't

　B．can't

　C．mustn't