"it was many years ago that I met him"其中的 ago 为什么必须有呢?

It has been many years since I was a big cheese. It was ____ I met Mr.Green in Shanghai.为什么选c不能选a啊?A.many years that B.many years beforeC.many years ago that D.many years when It was ____ I met Mr.Green in Shanghai.A.many years that B.many years beforeC.many years ago that D.many years when为什么选c不能选b啊? I don't remember how many years ago____I last showed you around the factory A.it was that B.it was B it was when 【高一英语】【啥啥从句】it is very difficult to tell how many years age________ people made the first ship.A.it was whenB.was it whenC.it was thatD.was it that It start many years It was very interesting to learn that a lot of J_____ came to live in Harbin many years ago. I still remember how many years ago _____Ilast met her in the countryside.A when it was B was it that C when was it D It was that为什么选C , I don't remember how many years ago ___ that people began to grow crops.A.it was when B.was it that C.it was that D.was it when but for many years it was said that Bonanno Pisano was the architect.怎么翻译 【英语选择】I have no idea how many years ago ___the custom begain became more popular a...【英语选择】I have no idea how many years ago ___the custom begain became more popular a.it was when b.it was that c.was it that d.was it when怎 Lantan has c 1 a lot over the years.It u 2 to the home of many w 3 animals.It was veryLantan has c 1 a lot over the years.It u 2 to the home of many w 3 animals.It was very q 4 and people could only go there b 5 ferry.But now there are many more r 6 It was many years ____ she made a fortune and established an insurance company.A.since B.when C.that D.beforeWhich one?why? 帮帮翻译：old lady:life was it different in china many years ago. it was many years ago that I met him其中的 ago 为什么必须有呢? it was many years before american women were given the rights to vote翻译下, It was many years before american women were given the rights to vote翻译, I still remember how many years _____ was that I quarrelled with her for the first time.A.when B.this C.that D.it