求翻译：It is very helpful for us when we are able to get close

I konw he is a teacher who is very helpful to us when we hav We all think that the book is very helpful to us.为什么是helpful it is very close to where we are now 这是一个什么从句? What's more,it's very helpful for us to take a positive atti It is important for us to learn science when we're young We when, is,to,easy,for,tired,very,i,dance,it,me,get.连词成句 英语翻译it is necessary for us to do first aid when we ___1____ we find it is easier for us to take action when wearing red It is us who are to blame for the poverty because we used to The rich is very helpful to us哪里错 it is good manners for us to thank our h__when we are invite when are we gonging to get there?翻译