john`s having seen her did not make her worried 中seen也是非谓语动词的过去分词?怎么有2个非谓语动词?having seen 他们可以连用?

John's having seen her did not make hr worried.请问这一句中的John's having seen her是不是看成一个主语（John's做having的逻辑主语）,having seen这是一个什么用法,是不是相当于一个have done.如果是的话是不是 john`s having seen her did not make her worried 中seen也是非谓语动词的过去分词?怎么有2个非谓语动词?having seen 他们可以连用? Have you seen John? This is John speaking.Who's that?………(排序)1.This is John speaking.Who's that?2.Oh,Ben.Where are you?3.Hello,may l speak to John?4.I'm in Jack's house.He's having a birthday party.6.Really?5.Ok.We'll wait for you.7.Yes.Would you like to come h Contrast may make sth appear more beautiful than it's when _____ about.A.seen B.to be seen C.in seen D.having been seen Having seen her smile是什么意思? ________ the teacher come in,the boy’s face turned red.选项:a、Seeing b、Having seen c、Seen d、When he saw选什么,为什么 It is Bill's responsibility ____ that all the visitors have a chair.A, of seeing, B, of having seen, C, to see, D, to have seen _with John's,your conpostition this time is not so good.A.ComparedB.ComparingC.Having comparedD.To compare John was caught ( ) his neighbour's apples the other day.A.to have stolenB.stealingC.to stealD.having steal I remember having seen him somewhere she was a bit nervous as she __her boy friend's parents.A has never seen B didn't seeC had never seen D not having seen为什么选C I Remember having seen him somewhere .Remember having 在句中有什么用,seen是谓语吗 问下第15题选having seen 为什么不行,having seen不可以是动名词吗? Today is Chen Jie's birthday .John isToday is Chen Jie's birthday .John is sending h（ ） a card.填下面括号 where's the john? 6.____i have never seen anyone who's as able as john.a.much as i have traveled b.as i have traveled so much 特别是语法! Having seen the children’s work,Miss Adams approves their requesting to go home.为什么这么改their requesting----their request