改定语从句,继续..1.The girl we saw yesterday is Jim's sister.2.This

改定语从句,继续..
1.The girl we saw yesterday is Jim's sister.
2.This is that boy.His parents went to Canada last year.
3.This is the book.I am looking for a book
4.The girl is our classmate.Her father is a doctor.
5.The doctor is very famous.She went to the USA with the doctor.