单项选择题

She claims to be very learned in biochemistry, but in fact ______ she knows about it is all sadly out of date.

A．so little
B．that much
C．what little
D．how much
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单项选择题
The manager threw a party ______ the group of computer experts from the United States.
A．in honor of
B．in favor of
C．in welcome of
D．in celebration of
单项选择题
He used to play badminton with you, ______
A．didn't he
B．used he
C．did he
D．gone off
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