The number of people who ______ cars of their own is increasing.

问题描述:

The number of people who ______ cars of their own is increasing.
A.has B.have C.there is D.there are
The number of 后不是+单数吗

B.have 为正确选项.
句子的谓语动词形式取决于主语.在楼主的这个句子中,who 后面是个定语从句,定语从句的谓语动词取决于先行词,这里的先行词是people,复数,所以用have.
The number of .是主句的主语,没错,它是要用单数的,你看后面的is increasing不正用了单数吗?is increasing 才是它的谓语.
理清句子的结构是解答本题的关键.