1 người đi từ A đến B. Nếu người này đi với vận tốc 18km/h thì đến B sớm 6 phút. Còn đi với vận tốc 12km/h thì đến B trễ 6 phút. Hỏi người này phải đi với vận tốc bao nhiêu để đến B đúng giờ?

Mọi người giúp em với em cần gấp ạ !

Mọi ngừi giúp em với em cần gấp ạ !

Khái quát sự chuyển hóa vật chất trong hệ sinh thái

Sưu tầm 3 câu thơ có sử dụng biện pháp nói quá và phân tích tác dụng (ngoài sgk).

Cho hỗn hợp gồm `a` mol `SO_3` và `b` mol `SO_2` phản ứng với dung dịch có chứa `x` mol `NaOH` . Hỏi có thể tạo ra nhưng muối nào ? Điều kiện nào của `a ; b ; x` thì ra muối đó ?

Bài 3: Viết thành câu hoàn chỉnh How/ you/ go to school/ ? -> we/ not/ believe/ ghost. -> How often/ you/ study English/ ? -> play/in/the/soccer/Mike/doesn’t/afternoons. -> 5.She/daughters/two/have. -> 6.very/much/not/like/lemonade/I -> 7.Wednesdays/on/It/rain/often. -> 8.never/wear/Jane/jeans. -> 9.phone/his/on/father/Sundays/Danny/every -> 10.Austria/I/from/be/Vienna. ->

Exercise 10: Fill in the gap with MAKE or DO. 1. I'm going to ____ a cake for Tom's birthday 2. They are going to ____ the shopping 3. Tonight you have to ___ the beds 4. She always _____ fun of her friends 5. The teacher asked us to ____ this exercise 6. They're _____ a documentary about the Civil War. 7. Who ___ those marks on the wall? 8. The decision ____ her very unpopular with the staff. 9. Mary spends ages ____ her hair in the morning. 10. Jane ____ aerobics three times a week

giúp mình vs gấp vs đáp án thôi 8p thôi ạ

Underline the best answer in these sentences below.: ( 1 points) Ex: He……..tall and thin ( am/is/are/has). 1. Mai…..……..her uniform on Mondays and Saturdays ( wear/wears/is wearing). 2. Look! The girls…………… in the schoolyard.( skip/skips/is skipping). 3. The dog is ………………the pillow.( front of / next/behind). 4. There………………a table and four chairs in the middle of the room ( is/are/has). 5. Mina is very………She likes to draw pictures. She always has lots of new ideas ( talkative/kind/creative). Choose the correct answer A, B, C or D to complete the passage. (1.0m) People need to breathe. If they don’t breathe, they (1) ____________ die. But how clean is the air people breathe? If they breathe (2) ___________ air, they will have breathing problems. Plants and animals need (3) __________ air too. A lot of the things in our lives create harmful gases and (4) _________the air dirty, like cars, motorbikes, and factories. Dirty air is called polluted air. Air pollution can also make our Earth warmer. 1. A. must B. are C. will D. won’t 2. A. fresh B. clean C. cleaner D. dirty 3. A. clean B. safe C. dirty D. polluted 4. A. get B. make C. give D. made Read the following passage and answer the questions. (2.0m) There are two main kinds of sports: team sports and individual sports. Team sports are such sports as baseball, basketball and volleyball. Team sports require two separate teams. The teams play against each other. They compete against each other because they want to get the best score. For example, in a football game, if team A scores 4 goals and team B scores 3 goals, team A wins the game. Team sports are sometimes called competitive sports. 1. How many main kinds of sports are there? -> ………………………………………………………….. 2. Do team sports require two separate teams? -> ………………………………………………………………………….. 3. Why do two separate teams compete against each other? -> ………………………………………………………………………….. 4. Are team sports always called competitive sports? -> …………………………………………………………………………….. Rewrite these sentences as directed in the brackets. (2.0m) 1. He was lazy, so he got a bad mark. (Rewrite this sentence with “because”) -> …………………………………………………………………………..