một người đi từ a đến b vì ngược gió nên đi hết 4 giờ ngày hôm sau người đó đi từ b về a xuôi gió nên về nhanh hơn,8 km\giờ và hết 3 giờ.tính vận tốc đi từ a đến b

giup minh voi Exercise 2. Put these sentences into the passive voice. 1. Should they help Jane with the sewing? 2. The mechanic is repairing Judy’s car. 3. Must we finish the test before ten? 4. They use a computer to do that job nowadays. 5. Employers must pay all travel expenses for this training course. 6. Did her story take them in? 7. The bank manager kept me for half an hour. 8. Has he spelt this word wrongly? 9. All his friends will see him off at the airport. 10. They used to drink beer for breakfast in England years ago. 11. Someone might have sent the letter to the wrong address. 12. They were cleaning the floor when I arrived. 13. They are digging the hole on the wrong side of the road. 14. They are going to steal your money if you’re not careful. 15. Has anyone ever asked you for your opinion? 16. Alan’s knowledge of art doesn’t impress me. 17. How do people make candles? 18. They can’t make tea with cold water. 19. When is someone going to announce the results of the contest? 20. Nobody informed the police that there had been a mistake. 21. Where will your company send you next year? 22. Who looked after the children when you were away? 23. Look! Someone is feeding the seals. 24. Kathy had returned the book to the library. 25. By this time tomorrow, the president will have made the announcement. 26. The pollution in the city was affecting people’s breathing. 27. Mrs Andrews hasn’t signed those papers yet. Has Mr Andrews signed them yet? 28. Is a student pilot flying that airplane? 29. Where did they hold the 1988 Olympic Games? 30. Do they make those tractors in this country, or do they import them?

Không tính giá trị cụ thể. Hãy so sánh a và b: A=32.53-31 B=53.31+32

Gợi ý : Bài này nằm trong web : Cambridge Flyers 2020 Test 33 _ Reading & Writing You must be excited! Where are you going ? ( Ex ) Richard is talking to his friend , Paul . What does Paul say? Read the conversation and choose the best answer. Write a letter (AH) for each question. You do not need to use all the letters. A . Just staying at home with my family , but it'll be OK. B . Well I hope you have a Great time ! C . That sounds a bit dangerous ! Why ? D . I think I'd like that! E . Great! And have you ever been before ? F . You must be excited! Where are you going ? ( Ex ) G . That sounds fun . Who with ? H . Do you think you'll remember how to do it ? Question 11 : Richard : I'm going on holiday tomorrow . Paul : F Richard : I'm going skiing in the mountains. Paul : Richard : My best frien and his family . Paul : Richard : Once , but that was years ago . Paul : Richard : I'm not sure but I'll soon find out . Paul : Richard : Thanks . Are you doing anything nice ? Paul :

Mọi người vẽ lại rồi tô màu đc hem??? Mình nhờ nhỏ bạn vẽ mà kết quả mệt gke

Giúp mình với nhé! Mình cảm ơn nhiều.

Giúp mình vs ạ mình đang cần gấp

vật mốc là cái gì?????????????????????

Trong ba nguyên nhân dẫn đến cái chết của Vũ Nương:     - Chiến tranh phi nghĩa     - Chế độ nam quyền     - Thói ghen tuông  Trong ba nguyên nhân trên, nguyên nhân nào là chính?Hãy giải thích rồi rút ra suy nghĩ của mình  ❤💋Viết đoạn văn nha🥰

Tìm x biết: 8x(x-3)+x-3=0 Phân tích thành nhân tử: a) x^2-y^2-2x+2y b) 2x+2y-x^2-xy c) 3a^2-6ab+3b^2-12c^2 d) x^2-25+y^2+2xy e) a^2+2ab+b^2-ac-bc f) x^2-2x-4y^2-4y g) x^2y-x^3-9y+9x h) x^2(x-1)+16(1-x)