I can't go to the beach with you this weekend because i have a date with my old classmates => If I

Diện tích xung quanh hình lập phương là 2500cm vuông. Tinh A) cạnh của hình lập phương đó B) diện tích toàn phần hình lập phương đó

Một xe đạp xuất phát từ A đến B với thời gian là x (giờ). Nếu sau 1h30phút xe máy cũng xuất phát từ A và đến B sớm hơn 1 giờ thì gian xe máy đi từ A đến B là: A. x – 2,5 (h) B. x + 2,5 (h) C. x – 1,5 (h) D. x – 1 (h)

33. It didn’t take the inspector _________ to solve the murder. A. time B. much C. lot D. long 34. When Rosemary is concentrating she __________ me of the grandmother. A. reminds B. recalls C. revises D. remember 35. In recent years, more and more people _________ for things with credit cards. A. have been paying B. are paying C. paid D. pay 36. What time _________ on the television? A. is the news B. are the news C. is news D. are news 37. I rarely buy hardback book – they are so expensive. I always wait until they come _______ in paperback. A. off B. up C. out D. down 38.” Shall I do it now?” – “I would rather you _______ it tomorrow.” A. do B. did C. will do D. should do 39. His face has rather a sad _____________ A. aspect B. look C. visage A. light 40. By the time the book is finished, he ________ an agent. A. is finding B. finds C. will have found D. has found

Change these sentences into the passive We use this room only on special occasions. 2. They don't make planes here. 3. My brother is repairing my piano. 4. A Japanese firm makes these TV sets. 5. He hasn't typed the letter yet. 1.We use this room only on special occasions.

Một thanh dẫn điện dài 40 (cm), chuyển động tịnh tiến trong từ trường đều, cảm ứng từ bằng 0,4 (T). Vectơ vận tốc của thanh vuông góc với thanh và hợp với các đường sức từ một góc 300, độ lớn v = 5 (m/s). Suất điện động giữa hai đầu thanh là: A. 0,4 (V). B. 0,8 (V). C. 40 (V). D. 80 (V).

Giúp em với nếu đc làm chi tiết dùm em Cảm ơn

Quy đồng mẫu số là gì? Tại sao phải quy đồng mẫu số? Quy đồng mẫu số để làm gì?

22. Under no circumstances __________ to open the door themselves. A. passengers permit C. do passengers permit B. do passengers permit D. are passengers permitted 23. Just another coat of paint on the front door; that’s all ________ doing. A. you need B. that needs C. you’re D. that’s 24. I’m sure it’s not my fault that Tom found out what we were planning. I don’t remember _________ anyone about it. A. having told B. being told C. to tell D. to be told 25. Don’t let a good chance go ______. A. on B. off C. by D. over 26. As she has her own money she is __________ of her parents. A. separate B. alone C. independent D. away 27. My parent didn’t permit me _______ out last night. A. to go B. going C. gone D. went 28.______________ if they hadn’t missed the train. A. They might arrive on time B. They might have arrived on time C. They might be arriving on time D. They might be arrived on time 29. They are conducting a campaign to ___________ the public about the dangers of smoking. A. train B. educate C. teach D. prepare 30. If I couldn’t speak Spanish, I ________ next year studying Mexico. A. would spent B. had spent C. would have spent D. will spent 31. _________ quarreled with her boy friend yesterday; she doesn’t want to answer his phone call. A. Having B. Because having C. because hadn’t D. Having not 32. He is living in his mother’s house this week as he ________ his house painted. A. has B. is having C. had D. has had

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