18. I/ not/ know/ what/ do/ make/ mother/ happy/. A. I not know what do to make mother happy B. I don’t know what to doing make my mother happy. C. I don’t know what to do to make my mother happy. D. I don’t know what doing to make my mother happy. 19. engine/ car/ need/ clean/ once/ month/. A. The engine for the car need to clean once a month. B. The engine of the car needs cleaning once a month. C. The engine with the car needs to be cleaned once a month. D. The engine of the car needs to clean once a month. 20. many/ place/ the world/,/ people/ used/ dye/ cloth/ nature/ material/. A. In many places in the world, people used dyeing cloth by natural materials. B. In many places in the world, people used to dye cloth with natural materials. C. In many places in the world, people used to dyeing cloth by natural materials. D. In many places in the world, people used to dye cloth with nature materials. 21. book / I / just / read / interesting/. A. The book whom I have just read is interesting. B. The book who I have just read is interesting. C. The book which I had just read is interesting. D. The book which I have just read is interesting. 23. Children / should have / special day / express / feeling / memories / /love/their parents/. A. Children should have a special day expressing their feeling, memories and love to their parents. B. Children should have a special day express their feeling, memories and love for their parents. C. Children should have a special day to express their feeling, memories and love for their parents. D. Children should have a special day expressing their feeling, memories and love for their parents. 25. It/ be claimed/ The Cham towers/ Binh Dinh province/ biggest/ Southeast Asia/. A. It is claimed that The Cham towers in Binh Dinh province is the biggest in Southeast Asia. B. It is claims that The Cham towers in Binh Dinh province is the biggest in Southeast Asia. C. It is claimed that The Cham towers in Binh Dinh province be the biggest in Southeast Asia. D. It is claimed that The Cham towers in Binh Dinh province to be the biggest in Southeast Asia. 26. The local government/ suggest/ build a road/ through Nam Cat Tien Park/. A. The local government suggested building a road through Nam Cat Tien Park. B. The local government suggest building a road through Nam Cat Tien Park. C. The local government suggested build a road through Nam Cat Tien Park. D. The local government suggested to build a road through Nam Cat Tien Park. 27. Her mother/ suggest/ Mary/ go/ see the dentist/. A. Her mother suggested Mary going to see the dentist. B. Her mother suggests that Mary goes to see the dentist. C. Her mother suggested that Mary should go to see the dentist. D. Her mother suggested that Mary went to see the dentist.