在下午向人问好时，你应说：
A. Good morning! B. Good afternoon! C. Where are you?
—________ we ask you some questions?
—Sure, go ahead!
| A．Will | B．Can | C．Must | D．Need |
—________ I finish the work today?
— No, you ________.
| A．Must; can’t | B．Must; needn’t |
| C．May; needn’t | D．Can; mustn’t |
This book ________ Lucy’s. Look! Her name is on the cover.
A. can’t be B. may be . mustn’t be D. must be
John ________ come to see us tonight, but he isn’t very sure yet.
| A．may | B．can | C．has to | D．must |
— Excuse me. Will you please tell me the way to the railway station?
—Oh, sorry, I don’t know. You ________ go and ask that policeman.
| A．may | B．must | C．would | D．should |