It took a long time for the human responsibility ______ on environment issues.A.to be builtB.to buildC.being builtD.building 求详解

分类: 作业答案 • 2021-12-18 22:47:55

问题描述：

It took a long time for the human responsibility ______ on environment issues.
A.to be builtB.to buildC.being builtD.building
求详解

答

A
此句后面是不定式的复合结构【for sb to do sth】
由于the human responsibility 和不定式build 为被动关系,故用不定式的被动式

It took a long time for the human responsibility ______ on environment issues.A.to be built​B.to build​C.being built​D.building 求详解