单项选择题

______ electricity is wasted everyday.

A. Any
B. A number of
C. A lot of
D. These
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单项选择题
That definition leaves ______ for disagreement.
A. much room
B. a small room
C. many rooms
D. a big room
单项选择题
The factory fired ______ man.
A. many a
B. some
C. all these
D. plenty of
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