－Do you mind my opening the window?
－______. Please do it now.
A. Of course not. B. Yes, I do. C. Certainly
In the old days, people lived in caves and they had to make a fire _________themselves warm.
| A．to keep | B．keeping | C．keep | D．kept |
At present, many people would rather ___________ in the country because there is _________ pollution in the city.
| A．live/more | B．to live/less | C．live/less | D．to live/more |
---Your 12-year-old son doesn’t know much about shopping online, ________ he?
--- ___________, actually shopping online is popular with teenagers these days.
| A．does/No | B．does/Yes | C．doesn’t/No | D．doesn’t/Yes |
--- I hope Jim won’t mind lending you his new digital camera.
--- He ___________. I have already borrowed one from my cousin, David.
| A．shouldn’t | B．mustn’t | C．needn’t | D．can’t |
---Everybody is playing on the playground. Can I join them , Miss Lin?
--- __________________ Not until you have completed the Maths exercises.
| A．Why not? | B．Will you? | C．I hope so. | D．I’m afraid not. |