ПОМОГИТЕ ПРОШУ ПРОШУ ППЖПЖ ДАЮ 30 БАЛЛОВ!!!!

Rewrite the sentences, using the correct relative pronouns.

1)The restaurant which we had dinner yesterday night was very expensive.

2)Jack had an idea whose helped him to become very famous.

3)He's the teacher which took us on a school trip to Leeds last year.

4)Kelly is a young fashion designer who shoes are very popular.

5)The book where I read last month was really interesting.