单项选择题

It is a good idea for parents to monitor the______as well as the kind of television that their children watch.

A. number
B. size
C. amount
D. screen
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I'm putting on weight. The doctor has warned me to______sugar.
A. keep up
B. keep back
C. keep off
D. keep away
单项选择题
I'm afraid that there isn't______for you in my car.
A. place
B. seat
C. corner
D. room
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