The number of the cellphones they produced this year( )increased by 30% compared to( )of last yearA.has;that B.has;those C.have;those D.have;that该题正确答案应选A,为什么不能选B,

问题描述:

The number of the cellphones they produced this year( )increased by 30% compared to( )of last year
A.has;that B.has;those C.have;those D.have;that
该题正确答案应选A,为什么不能选B,

that指代the number,所以用单数

that指的是:The number of the cellphones they produced 这一件事