We ____ a spare-time study group last week.
A. set up
B. put up
C. have established
D. build up
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We should learn _____ each other.
A. from
B. with
C. to
D. for
When I was five,I was in Sichuan.
A. 对
B. 错
I need a day or two ______.
A. to think it over
B. to think over it
C. of thinking
D. of think over
Everyhing is _______(可能的) once you work hard.