画线部分是个强调句，但是强调句型不是只有 it is...that...和it was...tha

Question

画线部分是个强调句，但是强调句型不是只有
it is...that...和it was...that就这两种吗？
那这里怎么就变成了ut is...who了呢？

Answer 1

强调主语，且主语是人，也可以用who。

Answer 2

I met an old friend of mine in the street yesterday. It was I who /that met an old friend of mine in the street yesterday. It was an old friend of mine who /that I met in the street yesterday. It was in the street that I met an old friend of mine yesterday. It was yesterday that I met an old friend of mine in the street . When was it that you met an old friend of yours in the street ? Where was it that you met an old friend of yours in the yesterday?