单项选择题

______ in time, the pills will be effective.

A. Taken
B. Taking
C. Take
D. To take
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单项选择题
I can't stand ______ with Jane in the same office. She just refuses ______ talking while she works.
A. working; stopping
B. to work; stopping
C. working; to stop
D. to work; to stop
单项选择题
The water ______ cool when I jumped into the pool for morning exercise.
A. was felt
B. is felt
C. felt
D. feels
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