——Would you mind my opening the window?
——__________.
| A．Of course, open it | B．Certainly not, do please |
| C．No, don’t do it | D．No, I would not |
Teachers will hardly use chalk in the future, ______?
| A．will he | B．won’t he | C．will they | D．won’t they |
— What nice coffee!
— But I think it will taste ______ with sugar.
| A．well | B．bad | C．worse | D．better |
— What’s wrong with you, sir?
— My flight ______ ten minutes ago. What should I do?
| A．took up | B．took off | C．got on | D．got off |
It began to rain ______ I was walking in the park.
| A．until | B．because | C．while | D．although |
Turn the computer off, Peter! You ______ play games so late any more.
| A．mustn’t | B．needn’t | C．have to | D．might |