考试
2020-03-16 13:55:00

3485 It is not uncommon for th

题目描述

It is not uncommon for there______problems of communication between old and young.A.isB.to



It is not uncommon for there______problems of communication between old and young.

A.is

B.to be

C.will be

D.being

请帮忙给出正确答案和分析,谢谢!

答案解析

B此句测试的是therebe的非谓语形式

加载中...
AI正在思考中,请稍候...