Question

【题目】The number of the books in the box 50．

A. are B. is C. have D. has

Answer 1

【答案】B

【解析】句意：盒子里书本的数量是50本。the number of 意思是“……的数量”，后跟复数名词，谓语动词用单数形式，故答案为B。