单项选择题

______ of them are doing homework at home.

[A] Each
[B] Both
[C] Every
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单项选择题
I didn’t go to______until midnight last night.
[A] bed
B. the bed
C. my bed
单项选择题
What does the man mean
A．He won’t learn how to use computer．
B．He will learn how to use computer．
C．He is good at using the computer．
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