Tìm min:P=2a^2-2ab+b^2-3a+1/a+2 sqrt(a-2) +2021

41. I’d rather not see him tomorrow. I don’t…………………………………………………………… 42. After many years of hard work,he retired. After he………………………………………………………….. 43. With the money he has saved, he can buy a house. His saving money………………………………………………. 44. We had to wait two hours for Ba. Ba kept………………………………………………………….. 45. It is difficult for us to make ends meet these days. We find………………………………………………………… 46. I am sorry, I interrupted your dinner. I apologized…………………………………………………….. 47. He does almost no work. He hardly……………………………………………………… 48. It's very difficult to leave here after such a long time. It isn't ......................................................................................................... 49. That restaurant is so dirty that no one wants to eat there. It is such ........................................................................................................ 50. You can't visit Moscow unless you get a visa. If you ..................................................................................... 51. Reading scientific books is one of my interest. I'm ............................................................................................................. 52. Jane is the tallest girl in her class. Nobody ......................................................................................................... 53. His parents made him study for his exam. He was made ................................................................................................ 54. Peter said he wasn't feeling well . Peter said " I ................................................................................................" 55. I'm pleased that we shall meet again soon. I'm looking .................................................................................................... 56. I have never met a famous person before. It is ............................................................................................................. 57. He said “I will go to school tomorrow.” He said …………………………………………………………………….. 58. “What kind of books do you read?” They asked Huong. They asked Huong………………………………………………………….. 59. The police has just caught the thief. The thief…………………………………………………………………….. 60. My classmate, Lan, loves to write letters. My classmate, Lan, enjoys………………………………………………….. 61. Ba is taller than Hung. Hung ……………………………………………………………………….. 62. They are going to build a new school here. A new school……………………………………………………………….. 63. The last time I saw him was in 1995. I haven’t 64. The furniture was so expensive that I didn’t buy it . The furniture was too 65. Unless he phones immediately he won’t get any information. If 66. We will solve the problem next week. The problem 67. The naught boys always draw on the wall. I wish 68. “ Would you like to go with me to the market, Mai ? ”- Ha said. Ha invited 69. “I’ll see you tomorrow, John.” Peter told John ............................................................................................................................... 70. “I left my umbrella here two days ago.” Susan told them………………………………………………………….......................

vẽ lựu đạn đi ạ nhanh = ctlhn

II. Chia động từ ở thì quá khứ tiếp diễn 1. I ___________________down the street when it begin to rain (go) 2. At this time last year, I ___________________an English course (attend) 3. Jim ________________ under the tree when he heard an explosion (stand) 4. The boy fell and hurt himself while he _________________ a bicycle (ride) 5. When we met them last year, they______________ in Santiago (live) 6. The tourist lost his camera while he________________ around the city (walk) 7. The lorry _______________ very fast when it hit our car (go) 8. While I ____________________in my room, my roommate ___________________ a party in the other room (study/ have) 9. Mary and I___________________ the house when the telephone rang (just leave) 10. We __________________ in the café when they saw us (sit)

1. Although he is old, he often plays tennis. In spite of ……………………………………………………….. 2. Tom is not used to working so hard. Tom is in ……………………………………………………….. 3. The day was so cold that we stayed indoor. It ………………………………………………………………… 4. The man was too tired to keep on working. The man was so…………………………………………………. 5. TV programs attract so many viewers. They can satisfy every taste. Because………………………………………………………….. 6. He is not good at English, He can’t get the job. If………………………………………………………………… 7. Nam washes his car every week. Nam wishes his car ……………………………………………. 8. He used to wait there all the time. He used to wait there …………………………………………… 9. My friend had the storekeeper deliver the book case. My friend asked ……………………………………………….. 10. My brother can be so annoying some times. I am ……………………………………………………………. 11. Mai was encouraged by the news. The news………………………………………………………. 12. Ba made that dress himself. The dress………………………………………………………. 13. I have never read such a romantic story. This is …………………………………………………………. 14.Everyone heard about the accident before I did. I was the……………………………………………………….. 15. The film star wore dark glasses so that no one would recognize him. The film star avoid…………………………………………….. 16.We didn’t arrive in time to see her. We weren’t early……………………………………………….. 17. If you don’t have a rest,you really will be ill. Unless…………………………………………………………… 18. The water was so cold that the children could not swim in it. The water was not……………………………………………….. 19. Ba was arrested by the police. The police……………………………………………………… 20.There are a number of people waiting to see you. A number of people……………………………………………. 21. I hope to see you at Christmas. I am……………………………………………………………… 22. Your hair is too long, You’d better have it cut. Your hair………………………………………………………… 23. Are you against working on Sunday? Do you object…………………………………………………? 24. I have to writes 6 letter a day. There are……………………………………………………… 25. People always laugh at his funny face, he doesn’t like it. He dis likes……………………………………………………. 26. You are not permitted to smoke in the hall. Smoking………………………………………………………. 27. I wish I had gone on holiday with my friend. I regret………………………………………………………… 28. Tom’s father no longer smokes cigarettes. No…………………………………………………………….. 29. This baby rarely cries during the night. Rarely………………………………………………………… 30. People did not discover Aids until 1981. Not until………………………………………………………. 31. I seldom come there at night. Seldom ……………………………………………………….. 32. We have never seen such a wonderful sight before. Never……………………………………………………………. 33. Those students arrived late because they had an accident. Because of………………………………………………………. 34. Tom was worried because of the heavy traffic. Because the……………………………………………………… 35. I regret not finishing my home work at the weekend. I wish……………………………………………………………. 36. Ba ate too much and then felt sick. If………………………………………………………………… 37. It started to rain at 2 o’clock. It has……………………………………………………………. 38. She and I had never been there before. Neither………………………………………………………….. 39. It was such good weather that we went swimming. The weather…………………………………………………….. 40. I can’t see that far. It is too………………………………………………………….

Viết 1 đoạn văn 8-10 câu có chủ đề: thói vô trách nhiệm của viên quan phụ mẫu. Trong đoạn có sử dụng 1 câu bị động, 1 câu dùng cụm CV mở rộng câu( gạch chân và chú thích rõ)

Làm giúp em nhé hứa vote 5* CTLHN ạ.

Xét hai vật A, B chuyển động dọc theo đường thẳng Ox. Chúng chuyển động ngược chiều nhau với tốc độ lần lượt là 16m/s và 36km/h. Xác định chiều chuyển động và độ lớn vận tốc trung điểm của AB.

I. Chia động từ ở trong ngoặc ở thì quá khứ tiếp diễn để hoàn thành câu. 11. I _______ (walk) down the street when it began to rain. 12. At this time last year, I _______ (attend) an English course. 13. Jim ________ (stand) under the tree when he heard an explosion. 14. While I _____ (study) in my room, my roommates ________ (have) a party in the other room. 15. Mary and I _________ (dance) the house when the telephone rang.

Ba nguyên tử R kết hợp với 2 nhóm (PO4) tạo ra phân tử chất A. Trong phân tử, R chiếm 68,386% khối lượng. Kí hiệu hóa học của nguyên tố R là bao nhiêu ?