All of the people in the country __ been prepared for the great reformation.
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Most of the water here __ clean.
A. is
B. are
80% cotton ___ been sent to America.
A. has
B. have
C. is
D. are
Half of the apples ___ red.
A. are
B. is
C. was
D. being
A number ofancient buildings __ destroyed in the war.
A. is
B. are
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