单项选择题

That is our classroom, and which is __________

A．there
B．their
C．theirs
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单项选择题
It's cold and windy. You __________ take off your coat.
A．had better not
B．has better not to
C．would like to
单项选择题
We have a lot of drinks. They __________ sugar and water.
A．are made
B．is made
C．are made of
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