We had a meeting at which we were talking about many issues yesterday.

The reason why we came here is asking for your help.

what was the name of town in which we stayed last year?

This was the person who I got the news from.

It has gone permanently for no buses in our village.

Did you know your wife in that restaurant?

I haven't seen the novel which we were talking about yesterday.

the English Drama which Mary took part in was very successful. 

I haven't found the pen which was used for writing letter.

Have you seen the TV which she spent USD1000?