单项选择题

Stamps ______ by people for sending letters.

A． are used
B． use
C． is used
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单项选择题
Mr. Brown has too many meetings to ______.
A． take
B． join
C． attend (出席)
单项选择题
I feel like drinking ______ now.
A． some cold thing
B． cold something
C． something cold (寒冷的，伤风)
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