In our school library there _____a number of books on science and the number of them_______growing larger and larger.A ,is,are B ,are .is C ,has ;is

问题描述:

In our school library there _____a number of books on science and the number of them_______growing larger and larger.
A ,is,are B ,are .is C ,has ;is

B
a number of books ,复数,
the number of ,。。。。的数量

B
第一个后面是复数,要用are
第二句的主语是the number,是一个整体,所以用is