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2 năm trước
Cho 8g Fe2O3 tác dụng với 200g dung dịch HCl 7.3% tạo ra muối FeCl3 và nước tính nồng độ % các chất trong dung dịch sau phản ứng Giúp mình nha mình cảm ơn mai mình nộp r
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I. Choose the most suitable words underlined a) Jack is/is going to be sixty- five next month so he retires/ will be retiring. b) Quick, here comes a police car! What will we say/are we going to say about the broken window? c) Don’t be so impatient! I’ll just come/I’m just coming. d) I have to be back at 3.30 so I’m leaving/I leave before lunch. e) What do you think you’ll be doing/you’ll do in five years’ time? f) Come on, get a move on, or we’ll miss/we’ll have missed the plane! g) Will you be working/Will you work the week after Christmas? I was thinking of visiting you. B. VOCABULARY AND GRAMMAR I. Choose the best answers to completes each sentence. (10 points) 1. I ____ a driving test next month A. will be having B. will have had C. have D. will have 2. “I’d rather you______ home now.” A. going B. go C. gone D. went 3. “Don’t worry. I have ______ tire at the back of my car.” A. another B. other C. others D. the other 5. Susan’s doctor insists ______ for a few days. A. that she is resting B. her resting C. that she rest D. her to rest 6. We couldn’t fly ______ because all the tickets had been sold out. A. economical B. economy C. economic D. economics + fly economy: bay hạng phổ thông 7. Through an ______, your letter was left unanswered. A. overtone B. overcharge C. overtime D. oversight 8. – “Mum, I’ve got 600 on the TOEFL test.” – “______” A. Good way! B. You are right. C. Oh, hard luck! D. Good job! 9. He ______ to the doctor after the accident, but he continued to play instead. A. must have gone B. should have gone C. couldn’t go D. didn’t have to go 10. I won’t change my mind ______ what you say. A. whether B. no matter C. because D. although 11. “Please, will you just tidy your room, and stop ______ excuses!” A. having B. making C. doing D. taking + make excuse: biện hộ 12. My mother told me to ______ for an electrician when her fan was out of order. A. send B. write C. rent D. turn + send for sb: gọi ai đến 13. “This library card will give you free access ______ the Internet eight hours a day.” A. on B. to C. from D. in 14. The United States consists of fifty states, ______ has its own government. A. each of which B. hence each C. they each D. each of that 15. It is very important for a firm or a company to keep ______ the changes in the market. A. pace of B. track about C. touch with D. up with 16. John paid $2 for his meal, ______ he had thought it would cost. A. not as much B. not so much as C. less as D. not so many as 17. John. “Do you think that we should use public transportation to protect our environment?” -Laura. “______” A. Of course not. You bet! B. Well, that’s very surprising. C. There’s no doubt about it. D. Yes, it’s an absurd idea. 18. The forecast has revealed that the world’s reserves of fossil fuel will have ______ by 2015. A. taken over B. caught up C. used off D. run out 19. Only when you grow up ______ the truth. A. you will know B. you know C. do you know D. will you know 20. – “How do you like your steak done?” – “ ______.” A. I don’t like it much B. Very little C. Well done D. Very much 21. She had to hand in her notice ______ advance when she decided to leave the jo B. A. with B. from C. in D. to 22. They didn’t find ______ in a foreign country. A. it easy to live B. it easy live C. it to live easy D. easy to live 23. “Buy me a newspaper on your way back, ______?” A. will you B. don’t you C. can’t you D. do you ai trả lời sẽ đc ctlhn với 5 sao

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