THực hiện phét tính a)(x−y)(x2+xy+y2) b) (x−2y2)(x2+2xy+4y2) c)(x−1)(x−2).x

đại dịch covid19 đã ảnh hưởng đến đời sống của nhân dân trên toàn thế giới .Em hãy viết thư cho 1 người thân ở xa để hỏi thăm động viên , kể lại những việc em và gia đình đẫ thực hiện làm tốt vông tác phòng chống dịch bệnh covid 19 của địa phương em

VI: Rewrite 1. My book is on the desk. ( Where) 2. There are six rooms in Huong’s house. (How many) 3. Yes, the nurse takes care of sick children. (Does) 4. The Davids grow vegetables and raise cattle on the farm. (Who)

V: Sắp xếp từ 1. interesting / an / film / is ! / what / it ® 2. is! / the / fine / weather / how ® 3. a / has / tub / bathroom / a / and / shower. / my / sink, / a ® 4. her / vegetables / Mrs. / grows / and / cattles / on / farm. / Na / raises ® 5. family? / most / is / apartment / the / suitable / your / which / for

IV. Rewrite the sentences. 1.I find collecting glass bottles interesting. - My hobby is……………………………………………………. 2. Van’s brother usually goes to work by motorbike. - Van’s brother usually rides…………………………………….. 3. Linh finds playing boarding games boring. (doesn’t like) - Linh…………………………………………………. 4. My sister enjoy arranging flowers.(interesting) - My sister finds………………………………………………. 5. This room is very bright. => What……………………………………………! 6. I started playing soccer 5 years ago. => I have............................................................................................. 7. My school is not the same as your school. => My school is....................................................................... 8. Nick enjoys carving eggshells => Nick’s hobby ……………………

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III. Find the mistakes and correct them . 1. I find carve eggshells boring because it takes a lot of time to complete one shell. A B C D 2. My brother not goes to class to learn how to paint. A B C D 3. I take up my hobby when I came back home from the Ats Gallery. A B C D 4. I think playing volleyball interest because it is a team game. A B C D 5. In my opinion, more people play monopoly in the future. A B C D

I: Find the word which has different sound in the underlined part in each line. 1.A. preferB. BetterC. TeacherD.worker 2. A. bearB. hear C. dearD. near 3. A. motherB. some C. coldD. come 4. A.absentB. governmentC. dependentD. enjoy 5. A. futureB. returnC. pictureD. culture II. Put the verbs in brackets into the correct form. 1. I enjoy (play)………………….. football with my friends. 2. I (go)………………………………… swimming with you tomorrow. 3. They hate (paint)………………… but they like (swim)…………………………. 4. I think I (move) ………………………..to the city next year. 5. My sister likes (cook) ……………….very much. She can cook many good foods. 6. Every year, my mother (give)………………. me a nice doll on my birthday. 7. She loves (do)……………………………. the gardening. 8. Do you think you (meet)……………….. Hoa this weekend? 9. We (go)………………………….. to the cinema three times a month. 10. My hobby is (collect)………………….. stamps 11. What you (do)…………………………. in your free time? 12. Hoa (continue)…………………………….. this hobby in the future. 13. I don’t think we (have)………………………… free time. 14. My brother (listen)………………………… to music every day. 15. Nga (share) ………………………………..this hobby with anyone? 16. I think (make)……………………………. models is interesting. 17. I find (carve)…………………………….. wood boring 18. They (give)………………………………. a party next week. 19. We (live) ……….near Nam’s house , but we (not see)……………….. him very often. 20. Don’t worry. I (go) ………………..fishing with you next Saturday morning. 21. She expects (get) ………….…………. a pay rise next month. 22. His mother wants him (get) ………..…………… a good result in this semester. 23. I will refuse (work) ……………….….on Saturday and Sunday if I can’t get the double pay. 24. We promise (help) …………………..…….. him when he is in trouble. 25. Their friends hope (see) ………….……………… them again 26. The boss decided (go) ……………….…………….. abroad. 27. Miss Linda enjoys (work) …………..……………… with young children. 28. I start (work) ………………………. at 7:00 am every day. 29. I’m looking forward to (talk)……………….………to you soon. 30. Would you mind (open) ……………………………… the window? 31. They (not see)……………..the film Titanic yet. 32. Tom( call)………………his boss recently. 33.John( not read)…… …………..the letter from Mary yesterday. 34. We(not begin)… ………….to learn for the test yet. 35.I( meet)…… ……………..Robert at the supermarket 2 days ago. 36. Nancy(be)…………………to VietNam several times. 37. I(not see)…………your brother yet. 38. My pen isn’t here any more. Someone(take)……………….it alrea

47. My parents might buy an __________ dishwasher tomorrow. A. comfortable B. automatic C. hi-tech D. cable 48. In the future, I will live in a _________ so that I can travel anywhere I want. A. skyscraper B. palace C. motorhome D. houseboat 49. She might have a _________ to help her do the housework in the future. A. fridge B. dishwasher C. washing machine D. robot 50. My aunt lives in a little_________ in the countryside. A. palace B. cottage C. skyscraper D. castle 51. Nam usually goes ________ after school. A. to fishing B. home C. the cinema D. house 52. I’m going to the ________now. I want to buy some bread. A. post office B. drugstore C. bakery D. toystore 53. People should _________ noise. A. reuse B. reduce C. recycle D. All are correct 54. _________can be recycled. A. Plastic bottles B. Glasses C. Clothes D. A and B are correct 55. My older sister often __________ old envelopes to decorate her room. A. reuses B. reduces C. recycles D. All are correct 56. We shouldn't use __________ to store food, let's use bags made of natural materials. A. plastic bottles B. can C. paper bags D. plastic bags 57. Lan always __________ books and clothes with her friends and cousins. A. swaps B. exchanges C. wraps D. A and B are correct 58. You should put used cans and glass bottles into __________. A. garden B. recycling bins C. organic green bins D. All are correct 59. We should use ___________ plastic boxes or bottles because they are good for health and safe for the environment. A. reusable B. refillable C. recyclable D. All are correct 60. Soil pollution _________ many bad effects on ecosystems and human life. A. does B. causes C. makes D. All are correct 61. Many plants and animals die because of __________. A. noise pollution B. environment C. deforestation D. A and B are correct 62. The air in this city is __________ by emissions from nearby factories. A. exchanged B. reduced C. polluted D. All are correct 63. The _____ of water pollution is the death of many types of fishes. A. cause B. effect C. reason D. solution 64. Rising sea level can make some cities __________. A. pollute B. exchange C. appear D. disappear 65. Protecting the __________environment is saving human life. A. natural B. polluted C. working D. All are correct 66. Do you think future robots will be able to do ____________ things? A. beautiful B. complicated C. small D. minor 67. He sometimes helps his grandfather do the _____________ such as watering flowers and planting trees. A. washing B. laundry C. gardening D. shopping 68. Some people say that robots will play a ____________ role in the future because they will not be able to do complicated things. A. minor B. important C. necessary D. major 69. Future robots will be able to ____________ our faces and give suitable responses. A. know B. recognize C. access D. get 70. In the future, we might not have to do the _____________ because home robots will be able to help us do that. A. wash B. clothes C. laundry D. shopping 71. In the robotic competition, some robots can ____________ heavy things. A. buy B. lift C. sit D. work 72. My father is cutting the ____________ of my grandparents' house. A. hedge B. dishes C. trees D. animals 73. People can use robots to build ______________ on other planets. A. gardens B. space stations C. palaces D. buildings

Một vật xuất phát từ A chuyển động thẳng đều về B cách A 120m với vận tốc 8m/s. Cùng lúc đó, một vật chuyển động thẳng đều từ B về A. Sau 10s hai vật gặp nhau. Tính vận tốc của vật thứ hai và vị trí hai vật gặp nhau?