not being 和having not?为什么not being 和having not同样可以做句子的开头,而一个not在前,一个在后呢?

not being 和having not?为什么not being 和having not同样可以做句子的开头,而一个not在前,一个在后呢? _finished his homework ,he had to stay home at the weedend.A.Not having B.having not C.Being not D.having no being.这四个选项是什么意思,在什么情况用. ________ tomorrow's lessons,I have no time to go out with you.A.Not preparing B.Not prepar C.Not being prepared D.Not having prepared是不是选D not having done 和 having not done 的区别 I apologize for ___ my promise.a、not having keptb、being keptc、not to have keptd、having not kept __ a college degree most young people find it difficule to get employed.A.Not being obtainedB.Having not obtainedC.Not having obtainedD.Being not obtained 英语选择题答案和理由_____for mu illness I would have lent him a helping hand with his researching.A Not being B Had it not been C Without being D Not having been No.I'm not having a picnic的问句 I left the meeting,there obviously( )no point in staying.A were B to be C being D having应该选择哪一个,为什么?就是B和C混不清 not being to China 与not having been to China的区别是什么? ____with his report,the boss told john to write it all over againA Not being satisfied B Not having satisfied C Not to satisfied D Not satisfied 为什么不选d啊?还是a 和b都可以? Not being greatfor wishout missing,no love time! being done,have been done和having done怎么分辨 Being done和having been.done的区别? having being done 和have been done 有什么区别 being invited和 having been invited 它们的形式是什么? —— from the operationA :Having not fully recovered B:Being not fully recovered C:Not having fully recovered D:Not fully recovering ____ an answer,I decided to write him again.A.Not to have receivedB.Not being receivedC.Having not receivedD.Not having received