问题
选择题
The number of workers in this factory _____ 1,500.
A number of them _____ from the countryside. [ ]
A. is; are
B. are; is
C. is; is
D. are; are
答案
答案：A
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The number of workers in this factory _____ 1,500.
A number of them _____ from the countryside. [ ]
A. is; are
B. are; is
C. is; is
D. are; are
答案：A