Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

43.Jane is a wonderful singer. Her mother tells me that she …………….. professionally since she was four.
A. have been sung B.was singing C.is singing D.has been singing
44. He ……………. off alone a month ago, and ……………… of since.
A.set /hasn’t been heard B.was setting/ have moved
C.set/ hasn’t heard D.was setting/ hadn’t been heard
45.None of the students …………………. to class yet.
A.are coming B.hadn’t come C.haven’t come D.have come
46. It is thought that Google ……………… cars many transform the way we move around cities in the future.
A.driving B.driver C.motionless D.driverless
47.Rentinal implants are meant to partially restore vision to people who have lost their ………….
A.view B.scene C.scenery D.sight
48.Biotech drugs, which are ……………… from living cells provide some of the best efforts at curring diseases such as diabets, Alzheimer’s, Parkinton’s and HIV.
A. done B.made C.caused D.formed
49. The cocoons of silkworms were first used …………… silk by the Chinese.
A. to make B.for make C.to making D.to be make
50. Paper was first ………….. to make paper money playing cards or the world’s oldest book – the Diamond Sutra- in the 2nd century by the Chinese.
A. to invent B. inventing C.being invented D.invented
51. The magnetic compass was first used to determine the correct ………………… by the Chinese.
A.way B.road C.path D.direction
52. Gunpowder was first used to make beautiful displays of ………………. for the celebrations in the 9th century by the Chinese.
A. firing B.fires C.fireworks D. firework
53 . IBM Waston is an artifically intelligent computer system ........... of answering questions posted in natural language.
A.capable B. aware C. able D. fond
54. Youtube ………….. to become the world’s most popular video- sharing wedsite since 2005
A.grows B.grew C.has grown D. have grown
55. Apple Ipad ………….. the single most popular tablet Pc ever since 2010.
A.has existed B.has stayed C.has remained D. has continued
56. In less than a decade you will carry a ……….. laser pen capable of sealing wounds.
A. readable B.comfortable C.portable D. capable
57.Kia Silverbrook from Australia invented Memjet, a high- speed ……………. Technology, in 2007.
A. colour-printing B. colour-print C.colours printing D. colour printing
60. Samsung Galaxy Tab ………….. flash player as well as voice and video calls.
A.supports B.offers C.displays D.provides
61. Engineers …………….. the finished bionic contact lenses on rabbits for up to twenty minutes.
A.have yet tested B.have already tested
C.have performed D. have done
62. Eastman Kodak Company ………….. many OLED equiped products since 1987.
A. produce B.produced C.is produced D. has produced
63. Do you want a powerful Ipad or a ………….. one - the Ipad Air or the iPad Mini?
A. carrying B.portable C. porter D. travelling
64. People join and volunteer…… the belive the cause is right, and this is the highest level of motivation.
A. or B.because C.so D.but
65.The boat rudder was first invented to steer large ships which …………….. the Chinese to the build huge ships as early as 200 AD
A.made B. let C. enabled D. kept
66.The Tesla coil is used ………….. extremely powerful electrical fields.
A. to create B.to solve C. to offer D.to permit
67. As a volunteer, you participate in helping our society ... the needs of people from all walks of life
a. require b. meet c. see d. catch

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
12. A: I think people nowadays prefer instant messaging and social networking to emails.
B: ____
A. I don't like emails. B. That's true! C. I'd prefer text messaging. D. That's OK!
13. A: Do you like e-books?
B: ____
A. No, I prefer them printed. B. They're expensive.
C. No, e-books are good. D. I like them both.
14. Smartphone can be a great learning ____ but you need to think of how to use it effectively.
A. benefit B. choice C. invention D. tool
15. It is convenient for you to read ____ when you travel.
A. e-books B. laptops C. online game D. smartphones
16. Many young people carry a pair of earbuds as they are small, light, and ____.
A. chargeable B. economical C. portable D. transferable
17. Washing machine or vacuum cleaner can help you to ____ time while doing housework.
A. kill B. save C. spend D. waste
18. Velcro has gradually become a familiar ____ for shoes, jackets, and even spacesuits.
A. button B. fastener C. locker D. zipper
19. Most smartphones now ____ flash player as well as voice and video calls.
A. display B. offer C. provide D. support
20. _____ is used to talk to people when you are away from home.
A. cell phone B. fax machine C. radio D. camcorder
21. Hurry up! The bus ______ in a moment.
A. will arrive B. is arriving C. arriving D. will be arriving
22. The cat is just behind the mouse. It ______ the latter.
A. is catching B. will catch C. catches D. is going to catch
23. The internet helps us to interact ______ other people around the world.
A. to B. from C. of D. with
24. I hope He _____ catch up with us soon.
A. is going B. will C. doesn’t D. is
25. Please close the window. The rain.
A. come B. is coming C. had come D. came
26. We managed to climb over the wall without ______.
A. being seen B. to see C. to be seen D. seeing
27. Many animals are ______ for their fur or other valuable parts of their bodies
A. dying B. killing C. killed D. died
28. We'll be late unless we _____ now.
A. leave B. don't leave C. had left D. have left
29. This computer isn't capable _____ running this software.
A. on B. of C. in D. for
30. Sea water is salty. If the oceans ______ of fresh water, there ______ plenty of water to irrigate all of the deserts in the world.
A. consisted/ would be B. consisted/ were
C. would consist/ could be D. consist/ will be
31. ______ you turn on the radio, I’d like to hear the latest news?
A. Should B. Will C. May D. Must
63. Do you want a powerful Ipad or a ………….. one - the Ipad Air or the iPad Mini?
A. carrying B.portable C. porter D. travelling
64. People join and volunteer…… the belive the cause is right, and this is the highest level of motivation.
A. or B.because C.so D.but
65.The boat rudder was first invented to steer large ships which …………….. the Chinese to the build huge ships as early as 200 AD
A.made B. let C. enabled D. kept
66.The Tesla coil is used ………….. extremely powerful electrical fields.
A. to create B.to solve C. to offer D.to permit
67. As a volunteer, you participate in helping our society ... the needs of people from all walks of life
a. require b. meet c. see d. catch
giải thích giùm mình câu 67 vì sao mình chọn " meet" duoc ko ban