单项选择题

I didn't know ______ at the meeting yesterday.

A． what to say
B． to say what
C． why to say
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单项选择题
-- Is Wang Fang at home -- ______, she is at school.
A． Yes
B． No
C． Wrong
单项选择题
I'm going to ______ this afternoon.
A． do some wash
B． do some washing
C． wash
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