“how important is keeping healthy to you”是定语从句吗?是的话那它的结构是怎样?

how important it is 还是how important is it how important happiness is!翻译 How important it is _____ (save) water! how important is english in our 为什么答案是how important it is? ke ke is making a cake. meeting it is!A.What a important B.What important C.How an important D.What an important 英语作文：How Important Water Is?初一作文,六十字左右 英语作文：How important is water to people?六十字左右 How important is your mobile phone for your life? 翻译learning how to learn is the most important Learning how to learn is the most important.英译汉 How important it is to careful with fire!（改错 英语翻译How important is keeping healthy to you ....... How important a thing it is to keep our promise! Learning how to b()at table is important 翻译 how important is climate change an issue? Important is not how long语法上有没有错误