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minhkhainguyen789
2 năm trước
Viết phương trình điện li 1. H2CO3 2. HBrO4 3. Pb( OH)2 4. Bi( OH)3 5. Cr( OH)3 6. Be( OH)2 7. KH2SO4 8. Fe( HCO3)2
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1. If I had finish a course on computer programming, I would have a better salary now. A​​ B​​ C​​ D 2. If we had more time last week, we would certainly have finished the project on time. ​ A​​​​ B​​ C D 3. Were you to win a huge sum of money, what would you have bought? ​​ A​​ B​​ C​​​ D 4. If they took their language lessons seriously, they would be able to communicate with the locals now. A​​​​​​ B​​​​ C ​ D 5. The guests could have had their lunch outside if it weren’t so cold. ​​​​ A​​B​ C D 6. What would you have done five years ago if you won a million dollars? ​​​ A​​ B ​ C D 7. If I had eaten lunch, I wouldn’t have been hungry now. A ​ ​B C​​ D 8. Unless I don’t go home early, please go shopping and buy some food for lunch. ​​A​​ B​​ C​​​ D 10. Had I been interested in that subject, I would try to learn more about it. A​​ B​​ C​​ D Em cần gấp !!

If I…………..to the store later, I’ll get you some milk. A. will go​​B. went​​​C. go​​​D. was going 2. If I’m tired in evenings,………….. A. I went to bed early​​B. I go to bed early C. I’d go to bed early​​D. I’d have gone to bed early 3. Don’t forget to ring me up if…………..any changes in the timetable. A. they are ​​B. it will be​​​C. there are ​​D. there will be 4. If you…………..very tired, shall we go to the concert tonight? A. didn’t feel ​​B. aren’t feeling ​​C. won’t feel ​​D. hadn’t felt 5. As a rule you shouldn’t argue with your hosts unless they…………..something openly offensive. A. had said ​​B. will say ​​​C. have said ​​D. would say 6. If I…………..hear from Nigel, I’ll tell him you were asking after him. A. happened ​​B. should happen to ​​C. should to​​D. will happen to 7. Study harder…………... A. if you will pass the exam​​B. and you pass the exam C. unless you pass the exam​​D. or you won’t pass the exam 8. If services are increased, taxes…………... A. probably go up​B. will probably go up​C. probably went up​D. going up probably 9. What…………...if there​…………...a serious nuclear accident? A. will happen – was​​B. happens - were C. would happen – were​D. would happen - had been 10. If all the ice in glaciers and ice sheets…………, the sea level…………...by about 80 meters. A. were melted - can rise​​B. has melted - has risen . C. melts - could have risen​​D. melted - would rise 11. If some endangered species…………….in zoos, it…………….to ensure their future survival. A. had been kept – helped​​B. will be kept - has helped C. are kept - could have been​​D. were kept - would help 12. If I were you, I…………….a car and have a look around the country. A. hired​​B. will hire ​​​C. would hire ​​D. could have hired 13. “What is the matter with Tim and Sarah?” “They said that if the business continued to do so badly they……………sell the house.” A. had to​​B. would have ​​C. would have to ​D. would be 14. “Are you going to buy it or not?” “If it……………so expensive, I would.” A. were​​B. weren’t ​​​C. hadn’t been ​D. isn’t 15. “Why do you have to get a train to work?” “If I didn’t live so far away, I ……………to.” A. wouldn’t have ​​B. didn’t have ​​C. hadn’t had ​​D. wouldn’t have had 16. “Why don’t we ask Michael to chair the meeting?” “Suppose……………to ask him, do you think he would accept?” A. were we ​​B. we were ​​​C. we had been ​D. had we been 17. If I could speak Spanish, I……………next year studying in Mexico. A. will spend​​​B. had spent​​C. would spend​D. would have spent 18.……………so aggressive, we’d get on much better. A. She was not​B. Had she not​​​C. Were not she​D. If she weren’t 19.I……… down your number if I……………right now. Can you call me back in half an hour? A. could be writing - am not driving ​​B. would write - weren’t driving C. were writing - wouldn’t drive ​​D. had written - hadn’t been driving 20. I don’t know you were asleep. Otherwise, I……………so much noise when I came in. A. didn’t make​B. wouldn’t have made​C. won’t make​​D. don’t make 21.I​took a taxi to the hotel but the traffic was very heavy. It…………quicker if I…………… A. would be - walked​​​B. would be - had walked C. would have been - had walked​D. was - walked 22. “I. thought you’d get here much earlier.” “I know. We……………it without our flight…………… almost two hours late.” A. could make - taking off​​B. would have made - took it off C. must have made - taking off​D. could have made - taking off 23.……………to the last Christmas party, she……………, but nobody invited her. A. Had she been invited - would have come​​B. If she had been invited - would come C. If she had invited - would come​​​D. Had she invited - would have come 24. If he had tried his best, he……………accepted to that university. A. would have​​B. would have been​​C. would be​​D. would had been 25.I​would have cooked something special if I……………you were coming. A. knew​​B. know​​​C. have known ​D. had known 26. The French hikers who were lost in. a jungle……………for seven weeks if they……………turtle meat and river water. A. wouldn’t survive - hadn’t been consuming​B. aren’t able to survive- didn’t consume C. couldn’t have survived - hadn’t consumed​D. didn’t survive - wouldn’t be consuming 27. If I ……………you were going to the post office, I would have asked you to buy me some stamps. A. knew​​B. have known ​​C. had known ​​D. know 28. Susan would never have talked to you again if you……………. A. didn’t apologize​​B. hadn’t apologized​C. wouldn’t have apologized ​D. haven’t apologized 29. If we…………….the flight, our holidays wouldn’t have been spoilt. A. hadn’t missed ​B. didn’t miss ​​​C. haven’t missed ​D. don’t miss 30. You should be very glad that John didn’t recognize you that night. Can you imagine his anger if he…? A. had​​​B. did​​​​C. did not ​​D. would have Giúp em với ạ !!

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