Chính xác + đầy đủ giúp em, em cảm ơn

cmr x^2+x+1 lớn hơn bằng không với mọi x

Viết PTHH dãy chuyển đổi sau : a) S => SO2 => SO3 => H2SO4 => Al2(SO4)3 b) CaCO3 => CaO => Ca(OH)2 => CaCl2. Giúp gấpppp

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Chỉ em với các anh chị em cảm ơn nhiều ạ

VII. Rewrite following sentences so that the meaning stay the same. 1.”If I were you,I wouldn’t buy this car” He advised............................................................................................................................ 2.”Shall I carry your suicase,Lan?”said Nam. Nam offered.......................................................................................................................... 3.”Yes,all right,I’ll share the food with you,Dave.” Ann agreed............................................................................................................................ 4.”Sue,can you remember to buy some bread?” Paul reminded........................................................................................................................ 5.”Don’t touch anything in this room”,the man said to the children. The man ordered.................................................................................................................... 6.”I must go home to make the dinner”,said Mary. Mary....................................................................................................................................... 7.”Are you going to Ho Chi Minh City next week?”Tom asked me. Tom asked.............................................................................................................................. 8.”Have you finished your homework?”Mom asked. Mom asked if......................................................................................................................... 9.She said to me:”I can’t do it by myself” She told me that..................................................................................................................... 10.”Does your brother live in London,Nam?”Lan asked. Lan wanted to know if........................................................................................................... 11.”Don’t repeat this mistake again.”his father warned him. His father warned him........................................................................................................... 12.”Give me a smile,”The photographer said to me. The......................................................................................................................................... 13.”Don’t leave these book on the table” ,the librarian said to the students The librarian told the students............................................................................................... 14.”Have you travelled abroad much?”he asked me. He.......................................................................................................................................... 15.”Who has written this note?” the boss asked the secretary. The boss asked.......................................................................................................................

hộ ạk Iem gấp lém cần sự gúp đỡ gấp nha

GIÚP E CÂU NÀY VS Ạ III. Choose the correct option A, B, C, or D to finish these sentences. 11. - “What shall we do this weekend?” - “______.” A. No problem B. Let’s go outing to the zoo C. Oh, that’s good D. I’ll go out for dinner 12. “Would you like to have ______ coffee?” A. an amount of B. a lot C. some D. little 13. - “Congratulations on your winning!” - “______.” A. You are a good friend B. You are welcome C. Thank you D. I’m very happy 14. - “How did you get here?” - “______” A. I came here by train. B. I came here last night. C. The train is so crowded. D. Is it far from here? 15. It’s difficult to ______ what our lives would be like without music. A. expect B. imagine C. remember D. see 16. You can buy dairy ______ in this shop. A. producers B. production C. productivity D. products 17. After drinking a big bottle of ______, he got drunk. A. milk B. orange juice C. water D. liquor 18. I wish I ______ a car. I’m tired of catching the bus to work every day. A. will have B. had C. have D. had had 19. Technology will play a key role ______ future life-styles. A. to shape B. shaping C. in shaping D. shape of 20. Of all the factors affecting agricultural yields, weather is the one ______. A. it influences farmers B. why farmers influence it C. that influences farmers D. farmers that it influences 21. If they aren't careful with their money, they'll get into ______. A. loss B. problem C. debt D. missing 22. Patrick must be out of the ______ of arriving late for meetings. A. habit B. custom C. use D. fashion 23. The dinner party went on much longer than John had ______. A. expected B. wondered C. attended D. appeared 24. ______ hard she worked, Louise never managed to finish her homework on time. A. Moreover B. However C. Although D. Despite 25. She returned home to find her house had been ______. A. broken B. stolen C. burgled D. thieved 26. A few animals sometimes fool their enemies _____ to be dead. A. appear B. to appear C. by appearing D. to be appearing 27. The air inside a house or office building often has higher concentrations of contaminants ______ heavily polluted outside air. A. than does B. more C. as some D. like of 28. The decimal numeral system is one of the ______ ways of expressing numbers. A. useful most world's B. world's most useful C. useful world's most D. most world's useful 29. Not only ______ to determine the depth of the ocean floor, but it is also used to locate oil. A. to use seismology B. is seismology used C. seismology is used D. using seismology 30. Computers that once took up entire rooms are now small enough to ______ desktops and into wristwatches. A. put on B. place into C. install in D. lay under

Along with jogging and swimming, cycling is one of the best all-round forms of exercise. It can help to increase your strength and energy, giving you more efficient muscles and a stronger heart. But increasing your strength is not the only advantage of cycling. Because you’re not carrying the weight of your body on your feet, it’s a good form of exercise for people with painful feet or backs. However, with all forms of exercise it’s important to start slowly and build up gently. Doing too much too quickly can damage muscles that aren’t used to working. If you have any doubts about taking up cycling for health reasons, talk to your doctor and ask for his/her advice. Ideally you should be cycling at least two or three times a week. For the exercise to be doing you good, you should get a little out of breath. Don’t worry that if you begin to lose your breath, it could be dangerous and there must be something wrong with your heart. This is simply not true; shortness of breath shows that the exercise is having the right effect. However, if you find you are in pain then you should stop and take a rest. Question 29: People with back problems might go cycling because__________. A. it enables them to carry the weight of their body on their feet B. it does not make them carry the weight of their body on their feet C. it helps to make their backs become stronger D. it helps them to relieve their backache Question 30: All forms of exercise must be started__________. A. gradually B. quickly C. strenuously D. violently Question 31: According to the writer, it is best to go cycling__________. A. once a week B. at least two or three times a week C. at least two or three times a day D. every day Question 32: Which of the following is NOT included in the advantages of cycling? A. Giving you a stronger heart B. Increasing your strength and energy C. Giving you better muscles D. Making you look younger

Lập dàn ý cho đề văn sau: Cảm nhận của em về nhân vật chú bé Hồng trong đoạn trích "Trong lòng mẹ" trích "Những ngày thơ ấu" của nhà văn Nguyên Hồng Lưu ý: Không chép mạng, trả lời câu hỏi ko liên quan Cần gấp mựi người ơi giúp em :((