单项选择题

______is well-known, the environment in China is badly in need of improve-merit.

A．It
B．That
C．As
D．What
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单项选择题
I walked out of the cinema, ______to return to see the wonderful film the next Sunday.
A．determine
B．being determined
C．determined
D．to be determined
单项选择题
My suggestion yesterday was that a meeting______to discuss the matter.
A．should
B．must be held
C．would be held
D．be held
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