1.（The man having been put in prison)for more than 20 years,no one rocognized him.2.Everyone(taking)their seats,the meeting began.3.Cars(parked illegally),they were punished by the police.请解释一下为什么只有第一句用完成式,详尽

having affair with the other man? the man is having his ( )supper,meal The man was seen ____ down and the driver driving away.A .knockB .be knockedC .knockedD .having knocked The man found the boy ____ by his parents.A.abandoningB.abandonedC.having abandonedD.to be abandoned ____ his key, the man looked ____a. Lost; worried b.Losing; to be worriedc. Having lost; worried为何选C? The man in the corner admitted to ___a lie to the manage of the company.A have tole B be told C being told D having told _____in the leg,the man was sent to the hospital at once.A.Being injured seriouslyB.To be injuredC.Seriously injuredD.Having injured Be the last man standing -------(be)the man ------（you)friend? 19.the last man ______the sinking ship was the caption.A)leftB)to be leavingC)to leaveD)having left请问答案为什么选C呢, ___ from the fact,he must be an honest man.__ from the fact,he must be an honest man.A.Judging B.Judged C.To judge D.Having judged 请高手帮我选出来,并说明理由, The old man sat in the corner,___ alone.A.well content to have a drink B.well content from having a drink C.quite contented having a drink D.to be quite contented with a drink The old gentleman is said __a very rich man when he was young.A.to have been B.having been C.to be D.to have being TIm was the sort of man who did not like his decisions____ .a.be questioned b.questioning c.having questioned d.questioned为什么不能选A 1.——the project in time,the staff were working at weekends.A.Completing B.Having completed C.To have completed D.To complete2.He must be helping the old man to water the flowers,A.is he B.isn't he C.must be D.mustn't be3.He found a lot of _were_. Although ________ considerable success as an artist,the young man keeps working hard.A.achieving B.having achieving 为什么答案选B?这里不是应该省略主语和be动词吗?B、应该为having achieved The man in the corner confessed to _______ a lie to the manager of the company.A) have told B) be told C) being told D) having told 为什么选D? The man in the corner confessed to _______ a lie to the manager of the compa a、have told b、be tolThe man in the corner confessed to _______ a lie to the manager of the company.选项:a、have toldb、be toldc、being told d、having told