— ____ do you clean the classroom?
— Three times a day.
| A．How long | B．How often | C．How soon | D．How many |
Jim is one of the boys ______ from England.
| A．who are | B．who is | C．that comes | D．that is |
In our school there ______ a number of books on science and the number of them ______ growing larger and larger.
| A．is; are | B．are; is | C．are; are | D．is; is |
______ there’s going to ______ a basketball match tomorrow，______ I won’t go to watch it because I’m very busy.
| A．Though; be; but | B．Though; have; / | C．/; have; but | D．Though; be; / |
I’m not sure if he ______ in this exam. But if he ______ harder, he will do better.
| A．succeeds; works | B．will succeed; will work |
| C．will succeed; works | D．succeeds; will work |
-The lights in the classroom are still on.
-Sorry. I’ll go and ______.
| A．turn them on | B．turn them off | C．turn them down | D．turn them up |