—Animals are our friends. We should protect them.
—________.
| A．I agree with you. | B．Sure, go ahead. |
| C．It must fun. | D．How exciting! |
_____ hard work it is! But _____ fun it is to finish walking the trail.
| A．What; how | B．What; what |
| C．How; how | D．How; what |
The life we were used to ________ greatly since 2002
| A．change | B．changing | C．have changed | D．has changed |
Your shoes under the bed _________. Put them in the sun, please.
| A．are smelt bad | B．smell bad |
| C．smell badly | D．are smelt badly |
The story book _________ for two weeks .
| A．has been borrowed | B．has borrowed |
| C．has been kept | D．has kept |
—Look，your father is playing the piano over there.
—He________ be my father. He has gone to Beijing.
| A．mustn’t | B．can’t | C．shouldn’t | D．may not |