Cho A=1/2+1/3+1/4+...+1/2019 và B=2018/1+2017/2+...+2/2017+1/2018. So sánh A/B với 1/2018

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yêu cầu dẫn chững nữa nhé Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42. Martin Luther King, Jf, is well- known for his work in civil rights and for his many famous speeches, among which is his moving “I have a dream” speech. But fewer people know much about King’s childhooD. M.L., as he was called, was bom in 1929 in Atlanta, Georgia, at the home of his maternal grandfather. M.L.’s grandfather purchased their home on Auburn Avenue in 1909, twenty years before M.L was bom. His grandfather allowed the house to be used as a meeting place for a number of organizations dedicated to the education and social advancement of blacks. M.L. grew up in the atmosphere, with his home being used as a community gathering place, and was no doubt influenced by it. M.L.’s childhood was not especially eventfully. His father was a minister and his mother was a musician. He was the second of three children, and he attended all black schools in a black neighborhood. The neighborhood was not poor, however. Auburn Avenue was an area of banks, insurance companies, builders, jewelers, tailors, doctors, lawyers, and other businesses and services. Even in the face of Atlanta’s segregation, the district thrived. Dr. King never forgot the community spirit he had known as a child, nor did he forget the racial prejudice that was a huge barrier keeping black Atlantans from mingling with whites. Question 36. What is the passage mainly about? A. The prejudice that existed in Atlanta. B. M.L.’s grandfather C. Martin Luther King’s childhood. D. The neighborhood King grew up in Question 37. When was M.L. bom? A. in 1909 B. in 1929 C. in 1949 D. 20 years after his parents had met. Question 38. What is Martin Luthur King well- known for? A. His publications. B. His neighborhood. C. His childhood. D. His work in civil rights. Question 39. According to the author, M.L. . A. had a difficult childhood. B. was a good musician as a child C. loved to listen to his grandfather speak. D. grew up in a relatively rich area of Atlanta. Question 40. Which of the following statements is NOT true? A. Auburn was a commercial areas. B. M.L.’s grandfather built their home on Auburn Avenue in 1909. C. M. L. grew up in a rich, black neighborhood. D. M.L.’s childhood was uneventful.

III.Change the active into the passive : 12 Who stole the money ? - ………………………………….................................................... 13. Why didn’t they tell me about it before ?- ………………………………………….............. 14. Has someone read my letter ? - ……………………………………..................................... 15*.Noone can do anything unless someone gives us more information . - ……………………………………………………………………………………………......... 16. We have to pick the fruit every early morning . - ……………………………………………………………………………………………........ 17. The police don’t allow people to park there .- ……………………………………………………………………………………………...... 18. They used to make little boys climb the chimney to clean them . - ………………………………………………………………………………………………. 19.Have you answered your boss’s questions ? - ……………………………………………………………....................................................... 20. The weather has turned all the leaves yellow . - ……………………………………………………………………………………………...... 21. Someone put these flowers into the vase last night . - ……………………………………………………………………………………………… 22.They often put this question to me but I never answer it . - ……………………………………………………………………………………………… 23.People used wood pulp to make paper .- ………………………………………….......... 24. They advised her not to see that horror film .- ……………………………………………… 25. The colored television has attracted people a lot since its appearance . - ……………………………………………………………………………………………… 26.They have shown that film on TV several times . - ……………………………………………………………………………………………… 27.They will publish a book on space travel next month . - ……………………………………………………………………………………………… 28.Who looked after the children when you were away ? - …………………………………………………………………………………………...... 29. We can’t make tea with cold tea .- ………………………………………….................. 30.Mary’s knowledge about art doesn’t impress me . - …………………………………………………………………………………………… 31. The teacher will assign us to write an essay . - …………………………………………………………………………………………… 32. How do you learn English at home ? - ………………………………………………………………… 33. Nobody speaks French here . - ……………………………………………………………………….. 34. Don’t speak until someone speaks to you .-…………………………………………………………… 35.Why did no one inform me of the change of plan ? - ……………………………………………………………………………………………… 36. The parents used to make the children study hard before exam . - …………………………………………………………………………………………… 37.He has to park his car in the right place . -……………………………………………………………… 38. They couldn’t not do anything to stop the fire .-………………………………………....... 39. They will have to change the day of the meeting .-………………………………….......... 40*.Are you sure that nobody was watching you ? -……………………………………….....

bài đục lỗ Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35. WAYS TO IMPROVE YOUR MEMORY A good memory is often seen as something that comes naturally, and a bad memory as something that cannot be changed, but actually there is a lot that you can do to improve your memory. We all remember the things we are interested in and forget the ones that bore US. This no doubt explains the reason (31) schoolboys remember football results effortlessly but struggle (32) dates from their history lessons! Take an active interest in what you want to remember, and focus on it (33) .One way to make yourself more interested is to ask questions — the more the better! Physical exercise is also important for your memory, because it increases your heart (34) and sends more oxygen to your brain, and that makes your memory work better. Exercise also reducesstress, which is very bad for the memory. The old saying that —eating fish makes you brainyl may be true after all. Scientists have discovered that the fats (35) in fish like tuna, sardines and salmon — as well as in olive oil - help to improve the memory. Vitamin-rich fruits such as oranges, strawberries and red grapes are all good - brain food, too. (Source: —New Cutting Edge, Cunningham, S. & Moor. 2010. Harlow: Longman) Question 31: A. why B. what C. how D. which Question 32: A. about B. for C. over D. towards Question 33: A. hardly B. slightly C. consciously D. easily Question 34: A. degree B. level C. rate D. grade Question 35: A. made B. existed C. founded D. found