--___ do you want? --I want a book on history.
| A．Which books | B．What book | C．How many books | D．Whose book |
— Excuse me, but I want to use your computer to type a report.
— You _______ have my computer if you don’t take care of it.
| A．shan’t | B．might not | C．needn’t | D．shouldn’t |
Children under 12 years of age in that country ______ be under adult supervision when in a public library.
| A．must | B．may | C．can | D．need |
— Who is the girl standing over there ?
— Well, if you _____ know, her name is Mabel.
| A．may | B．can | C．must | D．shall |
— 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 |
— What's the matter with Peter?
— He was seen crying when he was coming out of the teacher’s office. He ____ by the teacher.
| A．may be scolded | B．should have been scolded |
| C．must be scolded | D．must have been scolded |