1.We stayed in a hotel which was expensive. 2.She is riding on an elephant which was from India. 3.Susan who is good at learning foreign language is the girl. 4.I like autumn when leaves become red and fall. 5.The suitcase which his son can not carry upstairs is heavy. 6.Do you know Ba who you talked to last Sunday. 7.It's a book that will interest children of all ages. 8.The people who live next door kept having all night parties. 9.Here's an article that might interest you. 10.Where are the eggs that I put in the fridge yesterday? 11.Where's the girl who sells the tickets? 12.Half of people who were invited didn't appeared. 13.The festival that is in the late March or early April is called Easter. 14.I thanked the woman who helped me. 15 She is the most intelligent woman that I have ever met before. 16.The doctor who you visited yesterday is famous. 17.Do you know the day that people give flowers to woman? 18.The children that she is taking care of are orphans. 19.The man who said Tom was out answered thì phone. 20.Who is the woman that we met here last year.? 21.Try to read the book which I gave to you yesterday. 22.We visited the pagoda that many people go on New Year Day. 23.I like the house whose walls were made of glass. 24.I read about the child whose life was saved by a pet dog. 25.The people whom we visited house yesterday were nice. 26.A boy that you are using his bike is a friend of mine. 27.Do you know the woman whose daughter has won the contest? 28.We will tell you about the village where his parents live. 29.The girl whose husband has just won a big prize feels happy. 30.The author that you are reading his books is an English.