1/2+2/3 helppppppppppppppppppppppppppp

A = 1.2 + 2.3 + 3.4 + … + n.(n + 1)

Vẽ cái biểu tượng zoom NL: Tui nói là showw rùi nên đừng bc nka ;-;

3. A man asked me several difficult questions at the interview. - I ……………………………………………………….. 4. Nobody told me the story. - I ……………………………………………. 5. Oil lamps were used years ago. - People ………………………………………. 6. The house was broken into. - Somebody……………………………………………………….. 7. Susan is doing her homework now - Her homework………………………………………………………. 8. They will inform you the result of the exam by letter.( to inform: thông báo) - You ……………………………………………………………. 9. They will serve fish to the guests about ten minutes from now. - Fish …………………………………………………. 10. Shakespeare wrote many famous plays. - Many famous plays ………………………………………. 11. Bill will invite Ann to the party. - Ann ………………………………………………………… 12. A storm destroyed the small fishing village.( to destroy: phá hủy ) - The small ……………………………………………. 13. The Big Ben is visited by hundreds of people every day. - .Hundreds of people........................................................................... 14. She delivers milk at about six o’clock . - Milk ………………………………………………………………………… nhanh lên giúp tui vs

Một bánh xe đạp có bán kính 0,26m. a) người đi xe đạp sẽ đi vào nhiêu mét nếu xe lăn 200 vòng b) nếu người đó đi được 163,28m thì bánh xe cần phải lăn bao nhiêu vòng

Năm nay bố 45 tuổi, con 5 tuổi.Hỏi sau bao nhiêu năm nữa tuổi bố gấp 5 lần tuổi con?

xét tính đơn điệu của hàm số $x^{3}+$ $3x^{2}-4$

Vẽ cái biểu tượng zoom NL: Ny bảo chụp show nên nghe theo hoy ;-; ko có j đou ;-; đừng bc ;-;

PASSIVE VOICE I. Choose the best answer A, B, C or D to indicate the correct answer to each of the following questions. 1. This house ________ in 1990 by my grandfather. A. is built B. was built C. built D. has built 2. My sister is going ________ this house. A. sold B. sell C. to be sold D. to sell 3. There’s a man behind us. I think we are ___________. A. being followed B. be followed C. followed D. following 4. Over 1.000 new houses _________ every year. Last year, 1.200 new houses ________. A. were built / were built B. are built / were built C. are building / were built D. were built / were being built 5. The next exam __________ in May. A. will hold B. will be held C. will be holding D. will have held 6. English is _________ all over the world. A. spoken B. speak C. speaks D. to speak 7. Have you _________ by a dog? A. ever bite B. ever bitten C. ever been bitten D. ever been bite 8. The house _________ since last week. A. bought B. has bought C. was bought D. has been bought 9. The homework _________ by Nam every day. A. is done B. does C. are done D. did 10. These exercise must __________ by my students. A. are finished B. finish C. be finished D. finishing II. Put the verbs in brackets in the correct form. ( Chia động từ ở thể bị động) 1. The bike (repair) ______________________ yesterday. 2. A new school (build) ____________________ next month. 3. The house (clean) _________________ now. 4. English (speak) _____________________ in this country. 5. This film (watch) ______________________ yesterday. 6. This book (read) ___________________ three times by Mary. 7. My motorbike (steal) _____________________ yesterday. 8. He (give) ___________________ a watch by his mother last month. 9. The room will (redecorate) ______________________ soon. 10. The computer (use) ___________________ at the moment. GIÚP MÌNH GẤP VS CẢM ƠN MỌI NGƯỜI

làm cột 12 trử xuống cột bên tay trái ko càng làm nếu làm càng tốt