用it用法翻译下列句子

下面一一翻译：

1. It was I  that called  him yesterday.
   2. It is in the meeting room that I saw the key.
   3. It is his brother who your are talking about .
   4. It is yestoday that I  saw  the movie.
   5. It took us two hours to see  the movie.
   6.I  think it necessary to  learn a technical ability.
   7. It is 20 years since we began to learn English .
   8. it is not  long  before  you  realize you have made  a serious mistake.

it is me that calling him yesterday.
it is in the meetingroom waht i see.
it is his brother who your are talking about .
it is yestoday that i watching the movie
it takes our too hours that watching the movie.
i think,it is necessary that learning a technical ability.
it is been 20 years when i have learned English

it is before long that you will realize youare making a mistake.
好多年不用英语了，有点生疏，借助百度翻译完成，语法应该没啥问题，就是强调句。

1.It was I who telephoned him yesterday.
2.It was the meeting room that I found the key .
3.It was his brother who your are discussing.
4.It was yesterday when I watch the film.
5.It was necessary that to learn a skill.
6.It was twenty years when I learn English.

It was me who called him yesterday.
It was in the meeting room where I saw the key.
It was my little brother whom they talked about just now.
It has been twenty years since i started to learn English.
It is not long after that will you realize what a serious mistake you have made.

It was I that called him yesterday.
It was in the office that I saw the key.
It was his younger brother who you were talking about.
It was yesterday that I watched the movie.
It took us two hours to see a movie.
I think it necessary to learn a skill.
It's 20 years since I learned English.
It won't be long that you will realize how serious the mistake you made is.