单项选择题

Every means ______ tried but without much success.

A. have been
B. has been
C. will be
D. are being
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单项选择题
______ dances in the hall in the afternoon.
A. Many girls
B. A good many girls
C. A few girls
D. Many a girl
单项选择题
The teacher demanded that the homework ______ in two days.
A. to be handed in
B. must be handed in
C. shall be handed in
D. should be handed in
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