单项选择题

______ he referred to in his speech, the pollution in Beijing is indeed not serious.

A．What
B．As
C．Which
D．Since
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单项选择题
The thief ______ the lock of the lady's jewelry case open.
A．hit
B．forced
C．stole
D．broke
单项选择题
--Why don't you take a shower--Didn't I just have ______
A．it
B．that
C．one
D．this
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