Question

【题目】There a number of books in the library and the number of them increasing.

A. has;is B. have;are C. are;is D. is;are

Answer 1

【答案】C

【解析】句意：图书馆里有许多书，它们的数量在增加。考查短语a number of和the number of，前者作主语时，谓语动词用复数，后者作主语时，谓语动词用单数。故答案为C。