Câu 18. Một phòng học dạng hình hộp chữ nhật có chiều dài 7,5m; chiều rộng 5,4m; chiều cao 2,5m. Người ta quét vôi trần nhà và các bức tường phía trong phòng, biết diện tích các cửa là 25,5 m2. Hãy tính xem người đó phải trả bao nhiêu tiền sơn biết rằng mỗi mét vuông sơn cần trả 15000 đồng.

V. Choose and underline thw rod or phrase that best completes the sentence. 21. We go to school in order to ( prepare / prepared / preparing / prepared) our future. 22. He refused (go / to go / going / goes) to the dentist. 23. We suggest (go / going / to go / went) on a picnic. 24. The sad movie made me (cry / to cry / crying / cried). 25. We decided ( to stay / stay / staying / stayed) at home because of the heavy train

III. Choose the word or phrase (A, B, C or D) that best completes the sentence. 6. This book is _____ interesting of the three. A. most B. the most C. more D. the more 7. What will you do _____ your vacation? A. to B. in C. at D. during 8. Could you tell me how _____ to Ben Thanh market? A. getting B. get C. to get D. gets 9. “David can’t drive.” – “_____” A. Melanie can’t too B. Either can’t Melanie C. Neither can Melanie D. So can Melanie 10. “How far is it from here to the nearest post office?” – “_____” A. About three kilometers B. Go ahead and then turn right C. No, it’s not far D. Yes, it’s quite near here 11. His father is a journalist. He writes for a _____. A. bank B. hospital C. newspaper D. post office 12. The harder she works, the _____ money she earns. A. better B. much C. more D. less 13. _____ the students in my class enjoy taking part in social activity. A. Many B. Most C. Most of D. The number of 14. _____ tired, I went to bed early. A. To feel B. felt C. Feeling D. Having 15. Come here and have a _____. A. chair B. table C. seat D. sit