单项选择题

All life on the earth（）on the sun.

A. depends
B. carries
C. keeps
D. goes

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单项选择题
The book （） interesting, but it's very instructive.

A. can't be
B. may not be
C. should not be
D. might be
单项选择题
Just （）and do it properly.

A. bring your time
B. bring your times
C. take your time
D. take your times
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