为什么是It is easy to understand而不是It is easy to be understand为什么这里不用被动呢?

为什么是It is easy to understand而不是It is easy to be understand为什么这里不用被动呢? it is easy to 不是“it is +adj.+for sb to do sth”吗,那为什么是he finds it easy to study English well 为什么是take it easy 不是easily It is easy to get here It is easy to find 中文 为什么是what fun it is to. It is easy to clean it对吗还是it is easy to clean对 It is not easy being your age这句话中,为什么是being 英语no 和not的问题 it is no easy task.为什么是no不是not It is easy to arrange.和 It is easy to be arranged.是一个意思吗? it is easy to be a teacher 和 it is easy being a teacher的区别. it is very easy ,try to do it y___首字母 It's easy to talk in English is'n it. quiet a lot huge amounts ofPeople waste （）electricity every day.It is time to take action.A.a large number ofB.huge amounts ofC.manyD.quite a lot D 不是也是修是un.为什么是B running is easy to injure＝it is easy to injure running? it is ___(easy) to say than to do is it easy to be good parent?why?Is it easy to be good parent?why?Is it easy to be a good child?why?回答,不是翻译!