—What do you think of __________ idea of taking part in ‘Earth Hour’?
—Wonderful! I’ve never heard of __________ one! We can reduce pullution in this way.
| A．an； the better | B．the； a better |
| C．an； a better | D．the； the best |
—— Where is your father?
—— He has gone to the supermarket. He __________ at home.
| A．must be | B．mustn’t be | C．can be | D．can’t be |
—— What about having a rest? We have worked so long.
—— OK. Stop__________，please. Let’s stop__________ some water．
| A．working；having | B．working；to have |
| C．to work；to have | D．to work；having |
Could you tell me__________?
| A．what’s the matter with you | B．what was the matter with you |
| C．what the matter with you is | D．what the matter with you was |
He made his final __________ last winter and__________ from then on.
| A．appear; disappeared | B．appearance; disappeared |
| C．disappearance; appeared | D．appearance; appeared |
Do you know what__________ before you __________?
| A．was happened; came | B．is happening; come |
| C．had happened; came | D．happened; had come |