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một ô tô chạy trên quãng đường AB . lúc đi ô tô chạy với vận tốc 50km/h, lúc về ô tô chạy với vận tốc 40km/h. Do đó thời gian đi ít hơn thời gian về là 36 phút , tính độ dài quãng đường AB Làm hộ mình lời giải chi tiết
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6. New experiences we gain when we travel also ________ us. 17. Each type of tourism has its separate effect on the _________ and the locale. 18. Mass tourism helps developing countries _________ much-needed investments for roads and hospitals. 19. Only a small portion of ________ money actually reaches the locals. 20. A tourist uses as much water in just 24 hours as a third-world villager uses in ______ days. V. Use the correct form of the word given to complete each sentence. 21. The school is performing well, but we recognize the need for further _________. (improve) 22. If you want to attend the course, you must pass the __________ examination. (write) 23. I agree that academic performance is not the only criterion to _________ a person. (evaluation) 24. _________ write news stories, and articles for use on television and radio or within magazines, journals and newspapers. (Journal) 25. Are you someone who can read and write well in English but cannot speak ________ ? (fluency)

V. Find the mistake among the underlined words or phrases. 22. If (A) you do not understand (B) what were written (C) in the book, you could ask (D) Mr. Pike. 23. Getting (A) enough sleep is (B) important in order (C) not fall (D) asleep is class. VI. Give the correct form of the words in brackets. 24. He has completed three English courses at this center, but there hasn’t been any ________ in his English level. (improve) 25. People who are interested in exploring new things always want to take _________ trip. (adventure) IX. Rewrite the flowing sentences based on the given words. 36. I think you should spend at least 1 hour every day to practice speaking English in order to communicate fluently. => If I ______________________________________________. 37. This English course is very helpful for me. The course focuses on developing communicative skills. (that) => This English course ____________________________. 38. I haven’t decided to buy that expensive computer or not. => I am considering ______________________________. 39. Although Nam is very good with numbers, I still think that he is not suitable for a job as an accountant. (fact) => In spite __________________________________. 40. Natalie studied physics at the University of California. Then she became a staff writer for Live Science. (before) => Natalie __________________________________.

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