A hearty laugh relieves physical tension, _____your muscles relaxed for over half an hour.
A. to leave
B. left
C. leaving
D. leave
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____,the student insists that he be separated from his desk-mate,who is naughty.
A. To avoid being affected
B. To avoid to be affected
C. Avoiding being affected
D. Avoiding to be affected
The headmaster wanted the new classroom building___as soon as possible.
A. to put up
B. to be put up
C. to have been put up
D. being put up
At the shopping centre,he didn’t know what____and____with an empty bag.
A. to buy;leave
B. to be bought
C. to buy;left
D. was so buy;leave
He felt a stone____his back.
A. hitting
B. hit
C. hitted
D. to hit
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