题目内容
4. —A number of volunteers willing to teach in China's rural areas.
—Yes,the number is getting .
A. is;bigger and bigger
B. are;bigger and bigger
C. is;more and more
D. are;more and more
4.B
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题目内容
4. —A number of volunteers willing to teach in China's rural areas.
—Yes,the number is getting .
A. is;bigger and bigger
B. are;bigger and bigger
C. is;more and more
D. are;more and more