Question

【题目】What the children in the mountain village need ________ good books.

A. is

B. are

C. have

D. has

Answer 1

【答案】B

【解析】 what 引导的主语从句作主语时，谓语动词要根据后面的名词的数来决定，此处要用非 第三人称单数形式。