—David，is that man your Chinese teacher?
—It___________ be him．He’s having a meeting．
| A．mustn’t | B．can’t | C．needn’t | D．won’t |
— Did you meet ______ interesting at the party?
— Not really.
| A．anybody | B．somebody |
| C．everybody | D．nobody |
I like this room. You ______ see the mountains from the window.
| A．can | B．should | C．must | D．need |
Which book is ______ to understand， this one or that one?
| A．easy | B．easier | C．easiest | D．the easiest |
I phoned Sarah last night， ______ there was no answer.
| A．and | B．but | C．or | D．so |
I always go skiing with my friends ______ winter.
| A．in | B．on | C．at | D．for |