You ______ wear sports shoes when you climb a mountain.
| A．can’t | B．shouldn’t | C．mustn’t | D．have to |
---I’m going to take part in the piano competition next week.
--- _____
| A．Congratulations！ | B．Good luck！ |
| C．Not at all！ | D．With pleasure. |
---Why haven’t you asked her to come here?
---She _______ an important experiment when I found her and she _____ it.
| A．had done; didn’t finish |
| B．was doing; hasn’t finished |
| C．did; wouldn’t finish |
| D．has done; hadn’t finished |
Because of the heavy traffic, it was already time for lunch break she got to her office.
| A．since | B．that | C．when | D．until |
---How do you find the talk given by Mr. Smith?
---_________.
| A． Very well | B． Excited | C． Boring | D． Not at all |
---If you are free, go skating with us, OK?
---______________.
| A．Not at all. | B．Sure, I’d love to. |
| C．No, I don’t like you. | D．That’s right. |