The meeting being held now is of great importance我现在是新概念2的水平,不理解这句子是个什么结构?是否有省略的部分

Only after being asked three times did he come to the meeting 为什么being 用ing he address the meeting.翻译 —what did the teacher tell us at last class meeting?--he told us that he dislike__lies in class.a.tellingb.to tellc.being told the problem he put forward at the meeting is well worthA.consideringB.being considered应该选什么?为什么这不是被动? _____some reason ,he didn`t attend the meeting ,but we don`t know the reason _____his being absentA.For ,forB.For ,ofC.Of,ofD.Of,for+原因! i'm r___sorry for being late for the meeting the meeting being over,all of us went home. 和when the meeting was over ,~ 为什么用being和was _____ being seen by others,he slipped out of the meeting roomA.To be avoidedB.AvoidingC.To avoidD.Avoided选哪个?为什么? he was late for the meeting 句子成分? He _____ in the sports meeting yesterday 填空 HE WANTS TO SPEAK THE MEETING He will speak__.A.at meeting B.in the meeting C.on the meeting D.at the meeting Mr Green must have been punished for his being rude at the meeting yesterday,______?A.isn't he B.didn't he C.doesn't he D.needn't he The meeting being over,all of us went home为什么事 being over? we left the meeting,there obviously being no point in staying为什么用being 此句可否用被动式There being nothing else to discuss,he declared the meeting closed.前面的那句可否改成：There being nothing else to be discussed.说明理由. He didn't say anything at the meeting.He _____ _____ at the meeting. boss was angry about __ the meetingThe boss was angry about ___ the meeting.A.his being absent from B.he being absent from C.him be late for D.his being not present at 能告诉我为什么是选A而不是选B吗?为什么不用he呢?表示英语语