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Một động cơ ô tô có hiệu suất 30% nghĩa là khi hoạt động có bao nhiêu % năng lượng chuyển hóa thành động năng: A. 30% B.70% C.100% D. 50%

17. Judges travel all round America ....... search of the best singer and bring them to Hollywood. A. on B. in C. at D. for 18.In my family, we work together on household chores. We share the housework A. equality...

8. Did all students attend first-aid course last year. ................................................................................................................................................. 9. Farmer can milk cows twice a day...

Em cảm ơn nhiều ạ

Mọi người cho em hỏi vì sao √(4-2√3)-√3 lại bằng √((√3-1)2)-√3 vậy ạ? (Em bị mất gốc toán ạ:>()

Mọi người cho em hỏi vì sao lại bằng vậy ạ? (Em bị mất gốc toán ạ:>()

People’s fingernails and toenails, according to a recent study, are nowadays growing more quickly. Research (66)............ out at the University of North Carolina indicates that the speed at which human nails are growing has increased by close to 25 per cent over the last 70 years. The...

cut off put on call off come across cut down on hold up 6. To avoid problems with your teeth...

26. On Sunday, I will be lying on the beach while you (work) …………... . 27. The Principal usually gets his pupils (collect) ……....... waste paper for their mini-project. 28. It’s true she made a mistake but she hardly deserves (lose) …………... her job. 29. By the time you come here tomorrow, the...

1.If I was left alone, I would finish the job quickly (interrupting) -> If you …………………………………………………………………………. me, I would finish the job quickly. 2. George has been unemployed for two years now. (out) -> George …………………………………………………………………………. for two years now.

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1. Although she is absent frequently, she manages to pass the exam. (In spite of) 2. Don't miss meeting Mr.Lam for his career advice. (Forget) 3. My classmate said that she was willing to help me. (Mind) 4. He didn't get job. He had a good grade.( In spite)

104. If I was left alone, I would finish the job quickly. (interrupting) @ If you …………………………………………………………………………. me, I would finish the job quickly. 105. George has been unemployed for two years now. (out) @ George …………………………………………………………………………. for two years now.

86. It is known that colourful T-shirts were popular during the 1960s. @ Colourful T-shirts............................................................................................................................................................................ 87. It was wrong of you to be...