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CMR A=1/2 mũ 2+1/3 mũ 2+1/4 mũ 2+........+1/2009 mũ 2<1 giải thik chi tiết từng bước giải xong mik vote 5 sao cảm ơn nhiều ạ
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IV. Choose the best answer 1. The students are having a ________ check –up. A.scales B.measure C. medical D. measuring 2. I would like ________ some fruit and vegetables. A.buying B.to buy C.buy D. buys 3. You ought _________ to the dentist. A.to go B.go C. going D. goes 4. This river is very ________ for the swimmers. A.danger B.dangerous C. dangerously D. dangerly 5. Walking is a good sports___________ . A.game B.health C. activity D. action 6. I _______ stay in bed because I have a bad cold. A.must B.can C. shouldn’t D. mustn’t 7. _______________?– I’d love to . A. Do you like to go swimming ? B. Would you like to go swimming ? C.What about swimming ? D. Let’s go swimming? 8. Teenagers like_______________the latest pop music. A.hearing B.hear C. to hear D. for hearing 9. We don’t have a TV__________ our place. A.in B.on C. at D. for 10. I am going to the_________ center. A.amuse B.amusing C. amusement D. amused 11. He has plenty of homework ____________ tonight. A.to do B.do C. doing D. for doing 12. Nam often __________ an hour a day playing video games. A.takes B.has C. spends D. gets 13. They __________ to visit their old friends tomorrow. A.will B.are going C. will be D. are 14.Hoa __________ the busy city traffic now. A.used to B.uses to C. gets used to D. will used to 15.The students have a ___________ break between for periods. A.five - minutes B.five minutes C. five - minute D. five minute 16. She goes to the public library___________. A.carefully B.regularly C. suddenly D. fluently 17. There is a good movie __________ at Thang Long theater. A.on B.in C.at D. with 18. Are you interested__________ pop music? A.on B.in C.at D. with 19. I have a___________ summer vacation each year. A.three- months B.three months C. three- month D. three month 20. My mother added__________ soy sauce to the spinach. A.many B.a few C. a little D. much 21. I don’t want much sugar. Just ___________, please! A.many B.a few C. a little D. a lot 22. Students have two_________ each day. A.20- minute breaks B. 20- minutes breaks C. 20- minutes break D. 20- minute break 23. What’s __________ TV tonight? A.on B.in C.at D. with 24. We will_____________ our old friend next week. A.meets B.meet C.met D. meeting 25. He often ___________ his teeth after meals. A.brush B.brushs C.brushes D. to brush 26. You musn’t __________ out late. A.go B.to go C.going D. goes 27. I received a letter _________ my friend. A.on B.in C.at D. from 28. Minh is scared _________ seeing the dentist. A.on B.in C.of D. with 29. _________ don’t you come to my house? A.Why B.What C.When D. How 30. My new school is different_________ my old school. A.on B.from C.at D. with 31. We know the the food we eat __________ our whole life. A.allows B.affects C.makes D. touches 32.She didn’t_________ TV last night. A.watches B.watched C.watch D. watching 33. Today , many families have a TV_______. A.set B.neighbor C.programs D. together 34. I have a __________. So, I must go to the dentist. A.stomachache B.headache C.toothache D. cold 35.There was a wide_________ of fruit on display. A.selection B.select C.selected D. selecting 36. Did you buy any souvenirs in Nha Trang? – Yes, I_______. A.do B.does C.did D. doing 37. I prefer going out to__________ at home on the weekend. A.stay B.stays C.stayed D. staying 38. __________didn’t she come to school yesterday?- Because She was sick. A. Why B. How C. What D. When 39. When I have a toothache, I will come to see a ___________. A.doctor B.teacher C.dentist D.nurse 40. She ____________ to Nha Trang last summer. A.went B.goes C.is going D.will go 41. What______________ you do yesterday? A. do B. did C. will D. Were 42. You have to take care_________ yourself when you’re away home. A. in B. on C. at D. of 43.What’s your__________, Lan? – I’m 45kilos. A. weight B. height C. age D. name 44. Yesterday, I ___________ to school because I was sick. A. don’t go B. go C. went D. didn’t go 45. Ha likes bananas and_________ do we. A. so B. too C. either D. neither 46. They prefer reading___________ watching TV. A. in B. to C.than D.more than 47. Messi plays soccer_________. A.skill B.skillful C.skillfully D.good 48. Would you like__________ dinner with my family? A.to have B.having C.has D.have 49. Students should take part___________ outdoor activities. A. at B. on C. in D. for 50. You must be careful. Video games can be____________. A. interesting B. happy C. boring D. addictive

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