1 . Ladies and gentlemen, please fasten your seat belts. The plane ________.

A．takes off

B．took off

C．is taking off

D．has taken off

2 . 水果商正在挑出已经坏掉的苹果好让其它没坏的免受污染。

The fruit seller is _________   _________ the rotten apples to _________ the good ones _________   _________ contamination.

3 . 他正利用他叔叔给他的词典学习英语。
He is _____ _____ ____ the dictionary his uncle gave him to learn English.

4 . Betty_____ Shanghai in a few days, perhaps next Sunday. Do you know when the earliest plane ____ on Sundays?

A．leaves; is taking off	B．leaves; takes off
C．is leaving; is taking off	D．is leaving; takes off

5 . –Joe, are you free now?
—No, but I _____my work, and it won’t take long, perhaps in fifteen minutes.

A．just finished	B．have finished
C．am finishing	D．had finished

6 . Put on your coat! I _______ you down to the doctor.

A．take

B．took

C．have taken

D．am taking

7 . The children are busy doing piles of homework, for they                  their end-of-term exam soon.

A．will be taken	B．take
C．are taking	D．would take