单项选择题

The library _____, so it won't be available for students.

A．has been repaired
B． being repaired
C．is being repaired
D．has not repa
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单项选择题
One of the fifty states in the United States___ an island, Hawaii.
A．is
B．are
C．was
D．were
单项选择题
The word processor _______of a keyboard, a monitor and a printer.
A．composes
B．consists
C．comprises
D．constitutes
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