单项选择题

He doesn't know ______ or go home.

A．to wait
B．if to wait
C．if that he should wait
D．whether he should wait
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单项选择题
Is Mary ______ to join us
A．supposed
B．exposed
C．supported
D．indicated
单项选择题
— How about a game chess
A．I don't mind.
B．Why not
C．I agree.
D．Let's fight.
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