主谓一致专项练
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1. One-third of the area _____ covered with green trees. About seventy percent of the trees _____
been planted.
A. are; have
B. is; has
C. is; have D. are; has
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2. The number of teachers in our college _____ greatly increased last term.
A number of teachers in
this school _____ from the countryside.
A. was; is
B. was; are
C. were; are D. were; is
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3. What _____ the population of China? One-third of the population _____ workers here.
A. is; are
B. are; are
C. is; is D. are; is
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