1) The man who brought the envelope said that it was very important.
2) People who don't have any work experience can't apply for this position.
3) I wrote the letter, which you resieve this week
4) I read the book, which you have bought
5) This is the place which I told you about.
6) Where is your sister now?
7) Where are your sport boots?
8) I like streets where are many old buildings
9) I saw the place where are many flowers
10) They can't just shoot four blokes who just happened to go on holiday together.