The number of Class Two ( )larger than ( )of Class One.

问题描述:

The number of Class Two ( )larger than ( )of Class One.
A.is,that.B.are,it.C.is,it.D.are,that.是那个啊,好难

A
the number of 作主语时谓语动词用单数,故为is
that 是承前省略.