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phammainamhang
2 năm trước
Glixerol là chất được pha thêm vào cồn để làm nước rửa tay sát khuẩn, giúp cho da tay không bị khô. Glixerol được tạo bởi cacbon, hidro và oxi với % khối lượng tương ứng là 39,13%%, 8,7%, còn lại là oxi. Tìm công thức chất này biết phân tử chất này nặng gấp 2 lần phân tử khí NO2.
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Rewrite the following sentences so that they have the same meaning. 33. After finishing the Vietnamese course, Nick will visit some craft villages. A. Nick will visit some craft villages while he finishes the Vietnamese course. B. Nick will visit some craft villages even though he finishes the Vietnamese course. C. Nick will visit some craft villages after he finishes the Vietnamese course. D. Nick will visit some craft villages because he finishes the Vietnamese course. 34. Though the water is very cold in January, we go swimming anyway. A. When the water is very cold in January, we go swimming anyway. B. As the water is very cold in January, we go swimming anyway. C. The water is very cold in January if we go swimming anyway. D. Although the water is very cold in January, we go swimming anyway. 35. She studied hard for the exam in order that she could have good marks. A. She studied hard for the exam though she could have good marks. B. She studied hard for the exam unless she could have good marks. C. She studied hard for the exam if she could have good marks. D. She studied hard for the exam so that she could have good marks. Combine two following sentences into one. 36. The water was very cold. The lifeguards made all of the swimmers leave the water. A. Since the water was very cold, the lifeguards made all of the swimmers leave the water. B. The water was very cold although the lifeguards made all of the swimmers leave the water. C. The water was very cold because the lifeguards made all of the swimmers leave D. The lifeguards made all of the swimmers leave the water though the water was very cold. 37. You get out of bed late. You will miss the bus A. Get up late, or you will miss the bus. B. Unless you get up soon, you will miss the bus. C. Even though you get up late, you will miss the bus. D. Despite getting up late, you will miss the bus. 38. Sinh paintings are special because they are burned after worship. A. Sinh paintings are special so that they are burned after worship. B. Sinh paintings are special since they are burned after worship. C. Sinh paintings are special because of they are burned after worship. D. Sinh paintings are special, so they are burned after worship. Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions 39. The water is very cold in January. We go swimming anyway. A. When the water is very cold in January, we go swimming anyway. B. As the water is very cold in January, we go swimming anyway. C. The water is very cold in January if we go swimming anyway. D. Although the water is very cold in January, we go swimming anyway. 40. We have to follow more than ten stages. We can make a simple conical hat. A. We have to follow more than ten stages because we can make a simple conical hat. B. We have to follow more than ten stages so that we can make a simple conical hat. C. We have to follow more than ten stages although we can make a simple conical hat. D. We have to follow more than ten stages in order to we can make a simple conical hat. 41. In spite of his hard work, he could not finish the job. A. As hard as he work B. Despite he worked hard C. Though he worked hard D. Although hard work 42. Although he is very old, he can walk to the station. A. In spite of his old age B. Despite his old age C. Despite the fact that he is old D. All are correct

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges. 24. ‘Children in my village often fly their kites in dry rice fields.’ ‘................’ A. It’s right up my street! B. That’s awesome. C. Exactly what I want. D. How interesting! 25. ‘I have just taken an elephant ride in Buon Don.’ ‘________ How interesting!’ A. Certainly. B.Really? C.Terrible. D. Exactly. 26. “Thanks for giving me a ride to work today.” “ ___________ I was heading this direction anyway.” A. You don’t need to. B. Yes, thanks. C. No worries. D. I’d love to. 27. “_______________________?” “Everything is fine. How about you?” A. How old are you? B. How’s it going? C. What’s your life? D. What’s the matter? Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. 28. I left work and came back home early. A. returned B. arrived C. turn into D. took back 29. She's expecting Tet holiday this year to see her beloved family. A. looking forward to B. loving C. attending D. looking 30. What time does your mother usually get out of bed in the morning? A. raise up B. look up C. put up D. get up Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions 31. Many people now question the authenticity of his claims. A. real B. true C. fake D. reality 32. The artisans should focus on the quality of the products and waste treatment in production so that their traditional crafts will not die out. A. historical B. industrial C. cultural D. mature

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. 9. He decided to leave his job in the company despite she could earn a lot of money there. A. decided B. her C. Despite D. there 10. He put that letter in a book so as to no one could read it. A. put B. in C. so as to D. Could 11. Many people eat in order to they may live. A. many B. eat C. in order to D. may 12. The flight to London was cancelled so the weather was bad. A. flight B. was C. so D. bad 13. They would like to go out despite it is raining. A. they B. to go C. despite D. raining Mark the letter A, B, C, or D on your answer sheet to fill in the blanks 14. Some thievies broke into the museum and stole dozens of valuable marble .................... A. crafts B. sculptures C. workshops D. Handicrafts 15. They ______ these statues in bronze. A. knitted B. cast C. wove D. carved 16. I’m looking _________ yesterday’s booklet. Did you throw it away? A. for B. after C. up D. forward 17. How many balls of wool do you need to ______ that sweater? A. do B. weave C. knit D. embroider 18. If you buy train ticket ___________, It’s often cheaper than if you wait. A. on advance B. at advance C. in advance D. by advance 19. The of the new boss caused trouble to me. A. arrive B. arrival C. arriving D. arrived 20. Paul lost his job ……………his laziness. A. due to B. in spite of C. despite D. Because 21. ____________ Vicky goes out tonight, she will have to finish this essay. A. after B. when C. as soon as D. before 22. Channel brand has ___________ a lot of offices in villages over the last few years. A. closed down B. turned down C. closed up D. turned up 23. They offered her the job, but she ________ it __________. A. closed / down B. brought/ about C. came/ in for D. turned / down

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