1. This is the bag _ my mother bought yesterday.that/which2. The man _ lives next to us is my old friend. who/that3. The girl _ you saw in the street is Mary. that/who4. Is this the factory _ a lot of students visited yesterday? which/that5. Is this the factory _ your friend worked last year? where6. The only language _ is easy to learn is the mother tongue. that7. The girl handed everything _ she had picked up in the street to the police. that8. The one_ cleans the blackboard should be praised. who 9. Please show me the book _ you bought yesterday. which/that9. Please show me the book _ you bought yesterday. which/that10. This is the best book _ I have been looking for all this year. that/ /12. The man _ was here just now is a doctor. who/that13. The boy _ has two lovely dogs.A. who live next doorB. which lives next doorC. whom lives next doorD. that lives next door14. Those _ made no mistakes in todays exercises please raise your hands. who15. He is the most careful boy _ I know. that/ / 16. This is the school _ Mr. Smith once taught. where17. Have you visited the house _ the famous scientist was born? where18. The factory _ Mr. Li used to work was closed last week. where19. Do you still remember the day _ we first met?when20. The first time _ I saw Premier Zhou was in 1958. that 21. October 1, 1949 is the day _ well never forget. that22.October 1, 1949 was the day _ the Peoples Republic of China was founded. when23. Is this the shop _ sells childrens clothing? which/that24. Did you tell your mother all _ you had seen on the way home? that 25. Ill never forget the day _ I joined the League. on which/when 26. This is the new type of plane _ parts are made of plastics. whose 27. Is this the leaning tower _ Galileo did experiment centuries ago? where 28.Is there anything_you dont understand about the problem?that29.This is the hospital_we visited yesterday.which/that30.All the presents _ your friends gave you on your birthday should be put away.that31.The worst matter_ Id been afraid of happened in the end.that