单项选择题

There is no hurry. You can take your time ______ those exercises.

A．doing
B．to do
C．done
D．to be doing
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单项选择题
Not until I came to China ______ what kind of country it is.
A．I knew
B．I didn't know
C．I did know
D．did I know
单项选择题
______ English, she is studying Japanese and French.
A．Except
B．Except for
C．Beside
D．Besides
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