单项选择题

It is requested that every student ______ a paper on sustainable development.

A．writes
B．wrote
C．writing
D．write
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单项选择题
I expected her to ______ her promise.
A．carry on
B．carry out
C．carry off
D．carry away
单项选择题
I ______ I' m going to make some tea. Would you like a cup
A．think
B．look
C．ask
D．hope
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