Question

  — A number of volunteers       willing to work in poor areas in the western part of China.

— Yes, the number is getting       .

A. is; more and more                  B. are; larger and larger

C. is; larger and larger               D. are; more and more

Answer

B

【解析】

试题分析：句意：许多的志愿者乐意在中国的西部的贫困地区工作。是的，总数变得越来越多。A number of+名词复数，许多的……，作主语看着是复数；the number,···的总数，做主语看做单数。修饰数目多，用large或big,根据句意，故选B。

考点：考查固定结构的用法。