giúp mink với mn câu 8,9 nhá cm ơn trước

Giúp mình 3 bài chắc nghiệm này với

Biết ΔABC ∼ ΔA'B'C' theo tỉ số đồng dạng là $\frac{2}{3}$, B'C' = 12 cm, độ dài BC là

Sự kiện đánh dấu sự sụp đổ hoàn toàn của chế độ phong kiến Việt Nam là A: Tổng khởi nghĩa thắng lợi trên cả nướ B: Chủ tịch Hồ Chí Minh đọc bản “Tuyên ngôn độc lập” tại Quảng trường Ba Đình. C: Nước Việt Nam dân chủ cộng hòa ra đời. D: Vua Bảo Đại tuyên bố thoái vị.

Các b giúp mình với Đề.: Tính chu vi hình chữ nhật biết chiều rộng là 12cm,chiều dài là 2dm

1. “Don’t look at your mates’ exams.”, the teacher said to the students. The teacher told ​​​ 2. “I haven’t seen your brother since 2012.”, Ann said to me. Ann told ​​​ 3. “The school team has been playing since this morning.”, my friends told me. My friends said ​​​ 4. “Why don’t we go to the cinema?”, Brian suggested. Brian suggested ​​​ 5. Two weeks ago, he said, “I visited this museum last week.” Two weeks ago, he said that ​​​ 6. She claimed, “I am the best for this job.” She claimed that ​​​ 7. Last year, the minister said, “The crisis will be overcome next year.” Last year, the minister said that ​​​ 8. My riding teacher said, “Nobody has ever fallen off a horse here.” My riding teacher said that ​​​ 9. Last month, the boss explained, “None of my co-workers has to work overtime now.” Last month, the boss explained that ​​​ 10. She asked, “What did he say?” She asked ​​​ 11. He asked her, “Do you want to dance?” He asked her ​​​ 12. I asked him, “How old are you?” I asked him ​​​ 13. The tourists asked me, “Can you please show us the way?” The tourists asked me ​​​​​​ 14. The shop assistant asked the woman, “Which jacket have you already tried on?” The shop assistant asked the woman ​​​ 15. The passenger requested the taxi driver, “Stop the car.” The passenger requested the taxi driver ​​​ 16. The mother told her son, “Don’t be so loud.” The mother told her son ​​​ 17. The policeman told us, “Please keep moving.” The policeman told us ​​​ 18.She told me, “Don’t worry.” She told me ​​​ 19. The zookeeper told the children, “Don’t feed the animals.” The zookeeper told the children​​​ 20. The government of Switzerland said: “People in groups of fewer than five must stay at least two meters apart.” The government of Switzerland demanded

Giúp mình với ạ Phương pháp chế biến thực phẩm nào dưới đây có sử nhiệt?

Các cậu giúp mình với ạ!!! Mình đang cần gấp!!!

Mn giúp e vs . e cần gấp ạ Tại sao NST tập trung thành 1 hàng ở mặt phẳng xích đạo? Nếu NST nằm lệch 1 phía gây hậu quả như thế nào?

18. I think a hobby will always give you and help you . A. pleased - relax B. pleasure - relaxed C. pleased - relaxing D. pleasure - relax 19. You can share your stamps other collectors a stamp club. A. with - at B. to - at C. with - in D. to - in 20. I think this hobby does not cost you much, and you need is time. A. most B. all of C. some D. all 21. Hoa likes music. She often …………. to music in late evenings. A. listen B. listening C. listens D. to listens 22. I enjoy …………. baminton after school. A. doing B. playing C. seeing D. going 23. Ann has a large …………. of stamps. A. collect B. collection C. collecting D. collections 24. How …………. do you go to the library after school? A. often B. much C. many D. usually 25. My sister usually goes to the library with me. She likes___ comic books very much. A. read B. reading C. to read D. reads 26. In big cities, there are many kinds of _____ for young people. A. entertain B. entertains C. entertainment D. entertaining 27. What _____ does Minh like playing in his free time? A. activities B. sports C. things D. subjects 28. He goes swimming when he ______ free time. A. have B. is having C. has D. will have 29. My uncle likes ______ the vegetables we grow ourselves. A. to eat B. eat C. eats D. eating 30. My close friend draws very well. She will be a …………. artist one day. A. fame B. famous C. famously D. famed 31. We ________ swimming because it’s fun and good exercise. A. like B. are liking C. will like D. liked 32. My grandparents don’t like ________ in the city because it’s noisy and crowded. A. live B. lived C. living D. to living 33. Fire needs oxygen to burn. It ________ without oxygen. A. burn B. burns C. don’t burn D. doesn’t burn 34. How much time do you spend ________ the Internet per day? A. surf B. to surf C. surfing D. to be surfing 35.I don’t mind ________ a DVD, but I prefer ________ to the cinema. A. to watch - to go B. watching – go C. to watch – going D. watching – to go 36. _____ is her father's hobby. He likes going to the zoo to see beautiful parrots or canaries. A. Collecting birds B. Raising pets C. Bird-watching D. Arranging flowers 37. My mother loves ____ She usually grows vegetables and takes care of them when she has free time. A. cooking food B. gardening C. cycling D. eating fruits 38. My brothers would like to_____ mountain climbing. They think they will enjoy themselves and _____ some nice photos. A. go/ take B. pick/take C. take/collect D. go/pick 39. I prefer listening to music____ very much. Gentle and nice lyrics of old songs always attract my attention. A. headphones B. noise C. colours D. melodies 40. My father will go_____ on the sea when my family goes to the beach this week. A. gymnastics B. camping C. horse-riding D. surfing 41. I love making ____ because I can create some nice and unique clay bottles or cups to give my friends. A. pottery B. paper kites C. arc