单项选择题

______ his address, I can't visit him personally.

A．Not known
B．Not knowing
C．Haven't know
D．Don't know
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Everyone thinks the skirt ______ you well.
A．suitable
B．reasonable
C．probable
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You'd better ______ your homework by the time I arrived.
A．finished
B．finish
C．had finished
D．finishing
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