Question

【题目】The number of swimmers ______ getting larger and larger. Look, a number of students _____ swimming in this river.

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

Answer 1

【答案】C

【解析】

试题分析：句意：有用的人越来越多。看，许多学生正在这条河里游泳。The number of：……的数字，作主语时谓语动词用单数；a number of：许多，相当于many，后面跟可数名词的复数形式。故选C。