being invited和 having been invited 它们的形式是什么?

being invited和 having been invited 它们的形式是什么? had been invited 和were invited有什么区别?题：Most of the guests_____to Betty's birthday party were her classmatesA invited Bto invite C being invited D had been invited Most people ____ to the coming party are my old classmates.A.invited B.to be invited C.being invited D.inviting 为什么?为什么A和C不行? I will not go for lunch without____ being invited __ .后面的being invited 是动名词还是现在分词?动名词和现在分词有什么区别 关于动词不定式被动I remember__to their party,but I __the invitation in the office.A to be invited,have forgottenB being invited,have left为什么选A呢to be invited和being invited有什么不同being invited不是正在被邀请的意思 Nobody will come to the party without ___.A.being invited B.having invited C.invited D.inviting Most of the artists ___to the party were from South Africa. A.invited B. being invited He went to the party without_____ A.invited B.invitingC.having invitedD.being invited Unless invited to speak,youshould remain silent at the conference为什么不 用being invited I appreciate __to your birthday party.a to be invited b being invited请问选哪个 I don't mind ___to the party.A.not being invited B.not to be invited Don't come in unlessA inviting B inviting to C invited to D being invited to 英语语法：you are sad about not being invited 主要是介词后面的介词宾语不懂about not being invited为什么可以用being?动名词作介词宾语?invited又是怎么回事?什么时态?为什么invited又可以跟being? —Won't you go to Tom's birthday party tonight?—Unless_____A.invited B being invited C will be invited D to be invited Being invited to speak here is a great honor for me为什么要用being Are you really being invited?中的being的用法是什么?这个句子的语法结构是什么? 有关将来时的英语题I____to visit their country soon.A.have been invited B.am being invited C,had been invited D.shall be invitedPs：解释B和D即可,我知道A、C肯定不对.我觉得B中进行时表将来也可以啊,但答案给的D.不 to be he being的区别Both people ____to the conference next month are famous scientists.A.being invited B.to be invited两个答案都是对的.为什么,这个个,也就是动名词和动词不定式有什么区别和联系?