There _____ a number of books in the library.
The number of the books _____ getting bigger and bigger.
A. are; is B. are; are C. is; are D. is; is
【答案】A
【解析】句意：图书馆里有许多书，书的数量越来越大了。books为名词的复数形式，be动词用are；the number of表示“……的数量”，跟复数名词连用作主语时，中心词是number，谓语动词要用三单形式，故be动词用is，答案为A。