34. Do you know that environmentalist___________? A. with whom I used to work B. with that I used to work C. with used to work D. with who I used to work 35. The knife _________ we are cutting bread is very sharp. A. with that B. with which C. which D. that 36. The energy ______________ by the windmill drives all the drainage pumps. A. that is producing B. which produces C. producing D. produced 37. They buried thousands of fish __________ by poisonous chemicals from a nearby factory. A. to kill B. killing C. killed D. which kill 38. The old man __________a black suit is a famous energy researcher. A. to wear B. wearing C. whom is wearing D. is wearing 39. The man __________ next to you is my uncle. A. who sit B. that sitting C. sat D. sitting 40. The last student __________ John. A. to be interviewed was B. to interviewed was 4 C. was to be interviewed D. to be interviewed 41. Coal was the first fuel __________ to power machinery. A. is used B. using C. to use D. to be used 42. I saw many houses _________ by the storm. A. that were destroyed B. destroying C. were destroyed D. to destroy 43. The last person that leaves the room must turn off the lights. A. The person who turns off the lights must leave the room. B. The last person to leave the room must turn off the lights. C. The last person to turn off the lights must leave the room. D. The one who turns off the lights in the room is the last person.

Chỉ mình với thank nhìu giúp nhoaaa

The storm destroyed his house completely and now he is living with friends. => His house _______________________________________________

Cho tam giác BFC cân tại B. Kẻ FE vuông góc BC tại E, CA vuông góc BF tại A. a) Chứng minh ABEF = ABAC. b) FE cắt CA tại D. Chứng minh BD là tia phân giác của góc ABC. c) Gọi M là trung điểm của FC. Chứng minh BM vuông góc AE.

ai làm đc hết ko!!!!!!!!!!!!!!!!!!!!!!!!!

Khí đốt cháy: _Metan cháy thành ngọn lửa xanh mờ. _Axetilen cháy thành ngọn lửa sáng. _Benzen cháy thành ngọn lửa kém sáng hơn axetilen và có nhiều khói đen Hãy giải thích các hiện tượng trên.

Giải phương trình: 1/(x+2)(x+3) +1/(x+3)(x+4) + 1/(x+4)(x+5)= 2/ x^2-4

Make questions for the underlined words or phrases : 1. …………………………………………… It takes me 15 minutes to walk to school. 2. …………………………………………….. My village is to the north of the city 3. ………………………………………………… I go to school by bike. 4. ……………………………………………………… It’s about 2 kilometers from my house to school 5. …………………………………………………….. No, there isn’t ( there isn’t park in my village ) 6. ……………………………………………………….. She will travel to Ha Noi next week. 7. ……………………………………………………… They went to the countryside once a month last year. 8………………………………………………………………….. Nam went to bed early last night because he has a test today. 9. …………………………………………………………. Yes. He helps on the farm after school. 10 ………………………………………………………………….. No . I haven’t finish my report .

Bài 10: Tìm giá trị nhỏ nhất của biểu thức: a) A = x2 – 6x + 11 b) B = x2 – 20x + 101 c)C = x2 – 4xy + 5y2 + 10x – 22y + 28

Viết các ý dưới đây thành câu hoàn chỉnh có sử dụng biện pháp so sánh. 1.Tiếng nước chảy..........