-What colour are the cats ? -I think white and black.
| A．they’re | B．them | C．it’s | D．it |
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. |
Would you like ______ milk? No, thanks.
| A．some | B．any | C．a | D．drinking |