Giúp e vs mn ơi!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Giúp mình với mình hứa sẽ đánh giá 5 sao

( x2 + y2)2 - (2xy)2 = (x + y )2 ( x –y )

21. These tennis courts don’t _____ very often. Not many people want to play. A. got used B. used C. get used D. get use 22. I’ll get Minh _____ do this for you. A. do B. done C. did D. to do 23. Those letters ________ now. You can do the typing later. A. need typing B. needn't be typed C. need to type D. needn't typing 24. “What a beautiful dress you are wearing”- “thanks, it_____ especially for me by a French tailor.” A. is made B. has made C. made D. was made 25. Somebody cleans the room every day. A. The room everyday is cleaned. B. The room is every day cleaned. C. The room is cleaned every day. D. The room is cleaned by somebody every day. 26. People don’t use this road very often. A. This road is not used very often. B. Not very often this road is not used. C. This road very often is not used. D. This road not very often is used. 27. How do people learn languages? A. How are languages learned? B. How are languages learned by people? C. How languages are learned? D. Languages are learned how? 28. Over 1500 new houses _______ each year. Last year, 1720 new houses _______. A. were built/ were built B. are built/ were built C. are building / were built D. were built/ were being built 29. Tom bought that book yesterday. A. That book was bought by Tom yesterday. B. That book was bought yesterday by Tom. C. That book yesterday was bought by Tom D. That book was bought yesterday. 30. The new computer system _____ next month. A. is be installed B. is being installed C. is been installed D. is being installed by people 31.The boy_____ by the teacher yesterday. A. punish B. punished C. punishing D. was punished 32. “Ms Jones, please type those letters before noon”_ “They’ve already ____, sir. They’re on your desk.” A. typed B. been being typed C. being typed D. been typed 33. Sarah is wearing a blouse. It___________ of cotton. A. be made B. are made C. is made D. made 34. They had a boy _______ that yesterday. A. done B. to do C. did D. do 35. We got our mail ______ yesterday. A. been delivered B. delivered C. delivering D. to deliver 36. James……..the news as soon as possible. A. should tell B. should be told C. should told D. should be telled 37. My wedding ring ______ yellow and white gold. A. is made B. is making C. made D. make 38. Mr. Wilson is _______ as Willie to his friend. A. known B. knew C. is known D. know 39. References _____ in the examination room. A. not are used B. is not used C. didn’t used D. are not used 40. Laura ______ in Boston. A. are born B. were born C. was born D. born 41. His car needs ________. A. be fixed B. fixing C. to be fixing D. fixed 42. Her watch needs _______. A. repairing B. to be repaired C. repaired D. A and B 43. My mother is going _____ this house. A. sold B. sell C. to be sold D. to sell 44. There’s somebody behind us. I think we are _______. A. being followed B. are followed C. follow D. following 45. Have you _____ by a dog? A. bite B. bit C. ever been bitten D. ever been bit 46. The room is being _____ at the moment. A. was cleaned B. cleaned C. cleaning D. clean 47. It _____ that the strike will end soon. A. is expected B. expected C. are expected D. was expected 48. It is _____ that many people are homeless after the floods. A. was reported B. reports C. reported D. reporting 49. He was said _____ this building. A. designing B. to have designed C. to design D. designed 50. Ted ______ by a bee while he was sitting in the garden. A. got sting B. got stung C. get stung D. gets stung

ai nhanh nhất mình cho 5 sao + ctlhn nha

Cho tam giác abc, hai đường caoAM và Bn cắt nhau tại H.E hãy chọn phát biểu đúng A.H là tâm đường tròn nội tiếp tam giác B.H là trọng tâm của tam giác ABC C Ch là đườngcao của tam giác ABC D.Ch là đường trung trực của tam giác ABC

Giúp mik với mik đang cần gấp .

giải bài 3 hộ mình nhé(đang cần gấp ạ)

Giúp mik với mik đang cần gấp .

help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee