1.Tìm hiểu an dương vương xây thành chế nỏ 2. an dương vương chủ quan mất nước

Làm hộ em bài 5 với ai e cần gấp

I. Choose A, B, C or D to indicate the correct answer to each of the following questions. 1. The tree _______by my father yesterday. A. is planted B. was planted C. were planted D. are planted 2. A Russian doll _______to me on my next birthday. A. will be given B. is given C. are gave D. will be gave 3. My bag _______ 2 days ago. A. have stolen B. have been stolen C. has been stolen D. was stolen 4. The telephone _______ by Alexander Graham Bell. A. was invented B. is invented C. invented D. were invented 5. My computer _______ by my sister now. A. is using B. is being used C. used D. being use 6. The car _______for a week. A. is not repaired B. was not repair C. has not been repaired D. did not repair 7. A bunch of flowers _______by mother every day. A. is buy B. bought C. are bought D. is bought 8. The film _______several times. A. is seen B. are seen C. has been seen D. seen 9. The house _______ since 2001. A. is not paint B. has not been painted C. have not painted D. did not painted 10. The novel _______ by me 3 years ago. A. is written B. are written C. wrote D. was written 11. The car needs _______ every day. A. to cleaned B. cleaning C. be cleaned D. to clean 12. Many rock stars say the real thrill is that they enjoy _______ by thousands of adoring fans. A. being watched B. be watched C. to be watched D. watching 13. John’s big dream is that he wants _______by a big time music producer. A. to be discovered B. be discovered C. to discover D. discover 14. Before_______, glass bottles are thoroughly washed and the label removed. A. being recycle B. being recycled C. recycle D. recycling 15. By the time we reached home, the food _______. A. had been prepared B. had prepared C. prepare D. has been prepared 16. John got used to _______ when he was a child. A. being left alone B. be left alone C. leaving alone D. leave alone 17. When you called, students _______ to school. A. are taken B. is being taken C. were being taken D. taken 18. Before you came to school, all the exercises _______ carefully. A. has been completed B. had been completed C. was completed D. completed 19. While my father is reading books, flowers _______ by me. A. is watering B. are being watered C. water D. were being watered 20. All of the food _______before they come in. A. will have been eaten B. will have eaten C. is eaten D. ate mọi người giúp mik bài này với ạ

Từ nào ko phải là từ ghép v ạ -Đặc biệt , bạn bè , hạnh phúc , vui sướng , dịch bệnh , kiến thức , màn hình

Cách nhận biết nano3, na2so4, bacl2, h2so4

Giúp mình với ...........................................................

Helppppppppppppppppppppppppppppp

Bài 2. Cho 6,5 gam kẽm tác dụng với 147 gam dung dịch axit sunfuric 10%. a) Viết phương trình hóa học. b) Tính thể tích khí hidro thu được (ở đktc). c) Tính nồng độ phần trăm của các chất tan trong dung dịch sau phản ứng

Giúp mình với ạ !! :(( Câu c cô bảo làm 2 cách đều liên quan đến tam giác vuông(Cách 2 sử dụng tam giác AEF vuông tại F)

Làm nhiễm điện dương một thanh kim loại thì số electron trong thanh A.tăng lên. B.giảm đi. C.Khi tăng khi giảm. D.Không đổi.