21. “The interest ____ be divided into five parts, according to the agreement made by both sides,” declared the judge.

　 A. may　 B. should　 C. must　 D. shall

20. Children under 12 years of age in that country ____ be under adult supervision when in

public library.

A. must　 B. may　 C. can　 D. need

19. ---- Who is the girl standing over there ?

　---- Well, if you ____ know, her name is Mabel.

　A.may　 B. can　 C. must　 D. shall

18. ----Isn`t that Ann`s husband over there ?

　 ----No, it _____ be him--- I`m sure he doesn`t wear glasses.

　 A. can`t　 B. must not　 C. won`t　 D. may not

17.You must just as well tell the manufacturer that male customers ____ not take the design of the　 furniture.

A. must　 B. shall　 C. may　 D. need

16.　 Shall I tell John about it ?

----No, you _____ . I`ve told him already.

A.　　　 needn`t　 B. wouldn`t　 C. mustn`t　 D. shouldn`t

15.　 The fire spread through the hotel very quickly but everyone _____ get out.

A. had to　 B. would　 C. could　 D. was able to

14.　 When can I come for the photos? I need them tomorrow afternoon.

They ____ be ready by 12:00.

A. can　 B. should　 C. might　 D. need

13.　 Could I borrow your dictionary ?　 -----Yes , of　 course you _____.

A. might　 B. will　 C. can　 D. should

12.　 Will you stay for lunch ? ---- Sorry , ______. My brother is coming to see me.

A. I mustn`t　　 B. I can`t　 C. I needn`t　 D . I won`t