preparing 接什么形式

preparing 接什么形式 preparing什么意思? X-mas gift preparing什么意思? Mother is ____supper and the rest of the rest of the family are sitting at the tale___ it.A.preparing,prepared B.preparing,prepared forC.preparing for,preparing D.prepared for,preparing forprepared 和preparing for有什么区别? we are busy (preparing )our lesson these days括号中为什么填ING形式 preparing是什么意思? preparing是什么意思? preparing是什么意思 preparing是什么意思? Everyone___for our English exam.填prepares 还是is preparing还是别的什么?Everyone___for our English exam.填prepares 还是is preparing还是别的什么?理由 i spent a large amount of time preparing for the exam.请问prepare为什么要用ing形式 need 后接什么形式? would接动词什么形式 mean 接 动词什么形式? Wang Lin is back home and preparing supper with his mother.为什么back没有ing形式,而prepare用Ing形式,请从语法的角度解释一下, what to do for others while preparing for the competition什么意思 Preparing a poster showing the uses of the internet.如何理解其中ing形式?这是 外语教学与研究出版社 上册课本第六单元标题中的任务.原本是 Task：Preparing a poster showing the uses of the internet．Preparing和showin PREPARING LITERATURE REVIEWS怎么样