She looks very sad. I want to help her, but I just don’t know ____ to do it.
| A．what | B．when | C．how | D．which |
.Do you think English is more important than Chinese?
No, I think English is as ________ as Chinese.
| A．important | B．more important |
| C．less important | D．the most important |
When he came in, I __________ computer games.
| A．played | B．am playing |
| C．was playing | D．will play |
Remember _____the earth, we only have one earth.
| A．to pollute | B．not to pollute |
| C．polluting | D．not polluting |
Mr Green has ____ money, so he lives in a poor life.
| A．little | B．few |
| C．many | D．much. |
Must I finish my homework first? No, you ________.
| A．mustn’t | B．don’t |
| C．can’t | D．needn’t. |