---I didn’t go to work today.
----You _____; it’s Sunday today.
| A．mustn’t have | B．didn’t need to | C．can’t have | D．needn’t have |
. 一I’m sorry. That wasn’t of much help.
一Oh，. As a matter of fact，it was most helpful.
| A．sure it was | B．it doesn’t matter | C．of course not | D．thanks anyway |
. We laugh at jokes，but seldomabout how they work.
| A．we think | B．think we | C．we do think | D．do we think |
1. ---- Here’s your change.
----
| A．Thank you. | B．Don’t mention it. | C．No problem | D．With pleasure. |
（陕西卷25）. ----What a fine day! Shall we go picnicking?
----. But we need to be home before six o’clock for the football match.. (C)
A. Have a nice time. B. Pardon me C. That’s great D. You are right
（陕西卷1）3. –What’s the noise? It sounds as if it comes from upstairs.
--______ .It must be the window-cleaner working, next door.
| A．I’m not sure | B．I hope not | C．I’d rather not | D．I don’t think so |