giúp mình với mn - cho tỉ lệ thức a/b=c/d. chứng minh a-b/a+b=c-d/c+d

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10. "Has Caron talked to Kevin?" my friend asked me. 10. My friend asked me if Caron talked to Kevin. 11. “I’m afraid I’ve lost the photo you gave me last week.” The boy said 12. He said to his boss, “I’m sorry for being late twice” 13. “Please don’t tell my parents about this,” she said to me. 14. “It was your fault. You didn’t tell the truth” she said. 15. “Congratulations! You’ve passed the exam” He said 16. John said, “I really must have a break” 17. “I will come on time,” she said. 18. “I’m afraid I can’t go to the cinema with you tonight,” she said. 19. I said to the poster, “thanks for carrying my luggage.” 20. “If you do that again, I’ll leave,” the worker said angrily. 21. “You took the money”, he said. (accuse) 22. “I stole his bicycle”, he said to the police. (admit) 23. He said to the police, “I didn’t steal the bike”.(deny) 24. He said, “I’m sorry I’m late”. (apologize) 25. “I’ll drive you to the airport. I insist.”, John said to Linda.(insist) 26. “I’m happy to hear that you have passed the final exam. Congratulations!”, Jim said to me. (congratulate) 27. “It was nice of you to invite me to dinner. Thank you.”, Miss White said to George. (thank) 28. Don’t play with the matches.”, I said to Jack. (warn….. against) 29. “I’m sorry I didn’t phone you earlier.”, Margaret said to him.(apologies) 30. The student said, “I didn’t cheat in the exam.” (deny)

IX. Read the text carefully then choose the correct answers. Vietnamese food culture varies by regions from the north to the south. In Northern Vietnam, food is characterized by light and balanced. Northern Vietnam is seen to be the cradle of Vietnamese cuisine with many notable dishes like Pho, Bun Rieu, Bun Thang, Bun Cha, Banh Cuon, etc. Then, food culture in Northern Vietnam became popular in Central and Southern Vietnam with suitable flavors in each regions. The regional cuisine of Central Vietnam is famous for its spicy food. Hue cuisine is typical Central Vietnam’s food culture. Food in the region is often used with chili peppers and shrimp sauces, namely, Bun Bo Hue, Banh Khoai, Banh Beo, etc. In Southern Vietnam, the warm weather and fertile soil create an ideal condition for planting a variety of fruit, vegetables and livestock. Thus, food in the region is often added with garlic, shallots and fresh herbs. Particularly, Southerners are favored of sugar, they add sugar in almost dishes. Some signature dishes from Southern Vietnam include Banh Khot and Bun Mam. 1. It is considered that Vietnamese cuisine___________________. a. originated from the North b. became more and more popular c. always combines taste and colour d. can be found only in Northern Vietnam 2. What are the features of Northern Vietnamese food? a. It’s delicious and healthy. b. It’s sweet and sour c. It’s light and balanced. d. It’s a bit fatty and salty 3. Hue cuisine is notable for its _____________. a. colorful food b. spicy taste c. bitter taste d. light flavor 4. In Southern Vietnam, _____________. a. the warm weather makes it hard to plant fruit and vegetables b. fresh herbs are always used to cooking c. people love sweet food d. sugar it often added to dishes 5. Which of the followings is NOT true? a. Food in Vietnam changes region to region. b. Southerners do not like northern food due to its light flavor. c. Chili peppers and shrimp sauces are among the frequently used ingredients. d. Bun Bo Hue is a typical dish of the Central Vietnam cuisine. X. Make questions for the underlined parts. 1. She needs twelve eggs to make two cakes. ¬¬¬¬¬¬____________________________________________________________________ 2. They drank a lot of wine at the party last night. ____________________________________________________________________ 3. I often drink coffee in the morning. ____________________________________________________________________ 4. Beef noodle soup is my favourite food. ____________________________________________________________________ 5. My lemonade tastes a bit sour. ____________________________________________________________________ 6. No, there isn’t any milk in the fridge. ____________________________________________________________________ 7. No, thanks. I love cookies, but I’m full. ____________________________________________________________________ 8. The beef broth is made by stewing cow bones. ____________________________________________________________________ XI. Read the passage, and then answer the questions. Eating habits in Viet Nam Meals in Viet Nam - lunch or dinner - must include rice. Traditionally, Vietnamese meals are prepared by wives or mothers and the whole family is expected to eat. However, families now may have only one meal a day at home, and it may not include all the family members. Tastes, cooking methods and dishes are different between the three regions: the North, the Central, and the South. Nowadays, these differences have become small. When families do not have time to prepare meals, they eat out. Employees have lunch somewhere nearby the work places. Since Viet Nam opened its doors to foreign investors, more foreigners have stayed and worked in Viet Nam. As a result, more foreign restaurants have been opened in Viet Nam, especially in big cities. Young people in Viet Nam now like fast food because of its conveniences. Vietnamese food fast shops have been opened, and the most successful Vietnamese fast food chain is Pho 24. In recent years, there have been more Vietnamese fast food chains such as Bun Bo Hue 3A3. 66.What do meals in Viet Nam usually include? 67.When have more foreign restaurants been opened in Viet Nam? 68.Why do young people in Viet Nam like fast food? 69.Where do most employees have lunch? 70.What is the most successful Vietnamese fast food chain?