单项选择题

He has been away from home ______ three months ago.

A. since
B. for
C. during
D. before
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单项选择题
A. In a park. B. In a library. C. At a cinema. D. At home.
A. In a park. B. In a library.
C. At a cinema. D. At home.
单项选择题
The production ______ of the factory is now 800,000 units.
A. ability
B. power
C. capacity
D. possibility
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