Đáp án+Giải thích các bước giải:
Chia động từ trong ngoặc qua thì hiện tại hoàn thành hoặc quá khứ hoàn thành 1/ My father is an artist. He (draw) a lot of beautiful paintings. 2/ I ( spend) a holiday with my family in Vung tau last week. 3/ My motorbike is very new. I just (wash) it. 4/ I don’t know where Mom is. (You/see) her? 5/ Yesterday Mr John (have) an accident but luckily he (not/hurt)badly. 6/ I (call) her several times this morning. 7/ He (work) for this company for two years and then (leave) for America. 8/ We (notsee) him for a year. We don’t know where he is now. 9/ I (see) this cartoon film when I was ten. I (enjoy) very much. 10/ My father (not drink) wine for two years. He’s trying to stop it. 11/ I can’t go to the movies with you tonight. I (not finish) my homework yet. 12/ I (lose) my handbag on my way to work yesterday morming. 13/ How many countries you (be) in the world? A lot. ai giúp mình mình sẽ cho 5 vote huhu giúp mình với mn ơi
Mn nhiệt tình giúp em vs ak Em đag cần gấp lắm nha
Giúp em câu này với ạ, em cần gấp, cảm ơn trước ạ
làm giúp mik bài 1 nha mấy anh chị mik sẻ cho 5 sao
I hope you __________ when I arrive at 8 p.m. today! A.didn’t work B. won’t be working C.don’t work D. are working 72. What __________ in the year 2020? A.am I doing B.will I be doing C.do I do D. does I do 73. Which TV programme __________ at 9 p.m. tomorrow? A.did you watch B.will you watch C.will you be watching D. are you watching 74. __________ your laptop this evening? May I borrow it to do my project homework? A.Do you use B.Will you be using C.Were you using D. Will you use 75. At 11 a.m. tomorrow, he will be in. He __________ with his colleagues in Africa. A.video conferenced B.video conference C.will be video conferencing D. video conferences 76. People from other planets may use ____ to communicate, which is not possible for human beings. A.landlines B.letters C.chat rooms D.telepathy 77. People who cannot hear or speak often communicate using ___________. A.pictures B.sounds C.codes D.signs 78. The ___________ in technology allow astronomers to know more about outer space. A.developments B.science C.exploration D.discovery 79. Alexander Graham Bell was a great ___________, who invented the telephone. A.developer B.conservationist C.scientist D.explorer 80. To generate cheap and clean energy, instead of burning fossil fuels, scientists have developed ___________. A.oil B.solar panels C.electricity D.coal burning 90. Astronauts use ___________ to move around when they are on the Moon’s surface. A.spaceships B.flying saucers C.space cars D.moon buggies 91. I intended __________ to New York next month. A.flew B.to fly C.fly D. flying 92. I prefer __________ a nine-to-five job to working shifts. A.did B.doing C.do D. does 93. She said she chose __________ for one year before entering university. A.to work B.worked C.working D. works
cảm nhận của em về 5 điều bác hồ dạy
Giúp em văn bài lòng nhân đạo với ạ!! P/s: em còn có 21đ thôi ấu •~•
Để đốt 4,48l etylen(đktc)cần phải đúng? a)bao nhiu lít oxi b)bao nhiu lít kk chứa 20% khí oxi?
In the future, natural disasters . __________ accurately with the help of technology. A. to predict B. predict C. will be predicted D. will predict 42. On my birthday, I was very pleased because I . __________ a nice present. A. receive B. had received C. receives D. am receiving 43. Water _______ in the lake has made the fish die. A. pollution B. pollute C. polluted D. polluting 44. _____ workers were sent to the area immediately, but no villager was survived when the landslide happened. A. help B. rescue C. volunteer D. assistance 45. Three hundred people were left _____ by the earthquake. A. home B. property C. homeless D. house 46. The train or Ha Noi ______ at 7a.m tomorrow. A. leaves B. leaving C. to leave D. left 47. Environmental pollution has _____ to lots of health problems. A. caused B. got C. made D. led 48. The heavy rain has caused _______ in many parts of the country. A. drought B. storms C. forest fire D. floods 49. By the time we _______ to the cinema, the film had started . A. had got B. got C. were getting D. get 50.Many people die_________ food poison today. A. at B. of C. in D. on 51. A person who __________ the bagpipes is called a piper. A. plays B. performs C. entertains D. does 52. Don’t drink that water. It’s __________. A. damaged B. dumped C. contaminated D. clear 53. The team’s success was largely __________ to her efforts. A. because B. due C. since D. however 54. I often drink coffee, but today I __________ tea. A.am drinking B. drink C. drank D. drinks 55. All our English teachers are __________ speakers. A. native B. original C. foreign D. official 56. If you __________ the president, what would you do to help the environment? A. are B. had been C. were D. was 57. Eating too much sugar can __________ to health problems. A. cause B. lead C. make D. take 58. Emergency teams are still removing the __________ from the plane crash. A. dirt B. debris C. dust D. air 59. The heavy rain has caused __________ in many parts of the country. A. storms B. floods C. drought D. heat 60. I like ______________ back my home village on holiday. A. comes B. come C. came D. coming 61. If the factory _____ dumping poison into the lake, all the fish and other aquatic animals will die. A. continues B. to continue C. continued D. will continue 62. Water ________________ in the lake has made the fish die. A. pollution B. pollute C. polluted D. polluting 63. If the factory continues dumping poison _____ the lake, all the fish and other aquatic animals will die. A. into B. to C. about D. in 64. The famous Sydney Opera House as an arts center since 1973. A. serves B. served C. have served D. has served 65. If you the president, what would you do to help the environment? A. would be B. are C. had been D. were 66. Linh: Mai has won the first prize. - Ha: ! A. That's awesome B. Oh dear C. How terrible D. That's shocking 67. This animal, the , is a symbol of Australia. A. kangaroo B. koala C. rabbit D. tiger 68. Do you know that the telephone, the TV and penicillin are Scottish . A. inventors B. inventor C. inventions D. invention 69. Noise pollution can lead to loss. A. looking B. hearing C. listening D. reading 70. When she comes home later today, he __________ the dinner. A.cooks B.is cooking C.will be cooking D. will be cooked
1. Máy thu hình CRT và LCD khác nhau như thế nào? 2. Khả năng phát triển của các loại máy thu hình trong tương lai?
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