Cross out the word in each sentence that cannot be used. 1. Because of snow, the match had to be postponed / called off / delayed until the following week. 2. What kind of things do you do in your pleasure / leisure / spare time? 3. While we were waiting for the train, we played guessing games to waste time / pass the time / kill time. 4. Lauren injured / hurt / wounded her knee while break-dancing. 5. They've built an all-weather track at the sports / gymnastics / athletics stadium. 6. Vicky has decided to take up / take part / go in for a team sport like hockey, rather than skating.

a) 2a^3 + 7a^2b + 7ab^2 + 2b^3:(2a-b) b) (4x^5+3xy^4-y^5+2x^4y-6x^3^2):(2x^3+y^3-2xy^2)

Dịch các câu sau theo Tiếng Anh của bạn

Bài 1: rút gọn A=(a+b)^2 - (a-b)^2 B=(a+2)^2 - (a-2)^2 Bài 2 :tìm giá trị nhỏ nhất hàm số của x^2-2x+3 Gợi ý làm bài 1,2 sử dụng những hằng đẳng thức: 1.Bình phương của một tổng 2.Bình phương của một hiệu 3.Hiệu hai bình phương Giúp e với e đang cần gấp ạ 5*+ktlhn

Mình thấy bài này hay,mình thêm điều kiện là +Tìm ra số lớn nhất và nhỏ nhất trước rồi thực hiện yêu cầu tở dưới + Dùng mảng phụ B để đánh dấu các phần tử nguyên âm

Giúp mik bài này với mik cảm ơn ạ

Câu d) Đảo: Gọi O là giao điểm của DB và FK. CO có là đường cao của tam giác FCK không? Giúp tớ câu d của bài này với! Gấppppppp

cho tam giác ABC vuông tại A ,AC=6 , diện tích tam giác ABC =24 , đường cao AH .Hãy Tính diện tích của tam giác ABH ,và diện tích ACH

Choose the correct answer 1. My aunt and I are far away from each other, but we always……….. a. keep on b. get on c. keep in touch d. write on 2. Is physical education a/an……………subject in your school? a. traditional b. additional c. national d. compulsory 3. Her good behaviors made a deep……….on all the class members. a. impression b. expression c. kindness d. happiness 4. The ……………language of Malaysia is Bahasa Malaysia. a. regional b. national c. international d. religious 5. It seems difficult for me to have a trip ………….. at present. a. abroad b. outside c. aboard d. above 6. Visitors are welcome by the friendly………. of Vietnamese people. a. attitude b. expression c. impression d. addition 7. The living room and the dining room are ………. by a short wall where there are many decorative plants. a. broken b. divided c. parted d. separated 8. You can take part in sports activities , that depends on you. It’s ………. a. optional b. traditional c. compulsory d. official 9. Tom wishes he could help his sister with her homework, but he ………. a. could b. can c. couldn’t D. can’t 10. Mary ……….long curly hair. Now her hair is short. a. has b. had had c. used to having d. used to have 11. A soccer team usually consists ………. 11 members. a. in b. about c. of d. for 12. Lan used to walk ………. the old café on her way to primary school. a. pass b. across c. at d. past 13. He made a deep impression ………. the members of his English speaking club. a. in b. for c. at d. on 14. Foreign tourists shoukd be serious when entering places of ………. in Vietnam. a. recreation b. worship c. interest d. vacation 15. Vietnamese people usually ………. to their ancestors for good luck. a. correspond b. pray c. impress d. depend 16. Read the ………. on the box carefully before opening it. a. religion b. instruction c. revision d. introduction 17. The office ………. with every family in the district. a. separates b. depends c. comprises d. corresponds 18. “ Let me introduce myself. I’m Mai”  “……….” a. Nice to see you again b. Thanks, but I have seen it already c. I’m very pleased d. Pleased to meet you 19. “ Would you like to see the movie with me?”  “……….” a. Yes, I would b. thanks, but I have seen it already c. Please do. That’s very kind of you d. Not at all 20. “ Have you ever been to Hanoi, Kate?”  “ Yes, I ………. last summer.” a. was b. has been c. were d. have been

giải giúp mình bài này với mng mình đang cần gấp lắm ạ huhu 😢 cảm ơn mng nhiều ạ 🥰