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Độ lớn cảm ứng từ tại một điểm bên trong lòng ống dây có dòng điện đi qua sẽ tăng hay giảm bao nhiêu lần nếu số vòng dây và chiều dài ống dây đều tăng lên hai lần và cường độ dòng điện qua ống dây giảm bốn lần
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Choose the underlined word or phrase needs correcting 26. Although Mrs. Thoa was tired, but she helped Tuan with his homework. A. was tired B.but C. helped D.with 27. All the students are looking forward to spending their free time. A.students B.are C.forward to spending D.their 28. You are healthy if you go to bed early. A.are B.if C.to bed D.early 29. He suggests that we turn off the lights before leaving. A. suggests B.we C.turn off D.before 30. That is the man who he told me the bad news. A.That B.man C. he D.the bad news Choose the word or phrase (A, B, C, or D) to fill in each blank. FLOOD IN DORCHESTER _____(31) six o’clock yesterday evening, the River Thames burst its banks and flooded a wide area. By nine o’clock the floods had reached the town of Dorchester. The main street was soon _____ (32) three feet of water. Water engines arrived quickly to pump away the water, but heavy rain made their job very _____ (33). Mrs Rose Willow, a _____ (34) nearly 80 years old, and living alone in her cottage, was trapped upstairs for three hours. _____ (35), rescue workers were able to rescue her with ladder and a small _____ (36). “My cat, Tibbles, stayed with me all the time,” said Mrs Willow. “She _____(37) me a lot. She sat with me, so I didn’t feel afraid. ” The rain has finally stopped, the river level is falling and the weather forecast is good, _____(38) the floods have done a great deal of damage. “Luckily, nobody was drowned (die in water) or injured,” Chief Rescue Office Hawkins _______ (39) reporters, “but it will take a long time to _______ (40) the mess. ” 31. A. In B. To C. At D. Until 32. A. over B. under C. through D. between 33. A. easy B. difficult C. quick D. lean 34. A. girl B. man C. lady D. child 35. A. Finally B. Final C. Last D. Firstly 36. A. ship B. boat C. car D. bicycle 37. A. worried B. frightened C. bored D. helped 38. A. but B. also C. therefore D. so 39. A. said B. asked C. told D. spoke 40. A. clear B. develop C. take D. fight . Mark the letter A, B, C, or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions. 41. The film is not worth seeing. The plot is too dull. A. simple B. complicated C. boring D. slow 42. In rural Midwestern towns of the USA, the decisions that affect most residents are made at general assemblies in schools and churches. A. concerts B. public libraries C. gatherings D. prayer services 43. I hope to have the privilege of working with them again. A. honor B. advantage C. favor D. right Mark the letter A, B, C, or D to indicate the word or phrase that is OPPOSITE in meaning to the italic part in each of the following questions. 44. We ought to keep these proposals secret from the chairman for the time being. A. lively B. frequented C. accessible D. revealed 45. They have not made any effort to integrate with the local community. A. cooperate B. put together C. separate D. connect Rewrite 46. “Keep silent and concentrate on the lessons, please” said the teacher.  The teacher………………………………………………………………………………………………… 47. “ Don’t keep silent if you don’t understand” said the teacher.  The teacher………………………………………………………………………………………………… 48. The government gave her a scholarship to the University.  A scholarship……………………………………………………………………………………………… 49. My father seldom drinks coffee in the evening.  Seldom…………………………………………………………………………………………………….. 50. Mr. Clark bought a new car although we advised him against it.  Despite……………………………………………………………………………………………………...

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