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Câu 15: Dãy nào sau đây gồm các chất đều thuộc loại Bazơ? A. Mg(OH)2, KOH, Fe(OH)2. B. HCl, NaCl, BaCl2. C. KCl, Ba(OH)2, Fe(OH)2. D. HCl, H2SO4, NaNO3.
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II. Complete the following sentences with gerund or infinitive form 1. He wanted (see) _____________________the house where the president was born. 2. He is expected (arrive) _____________________in a few days. 3. I would like him (go) _____________________ to a university but I can’t (make)__________ him go. 4. I am looking forward (see) _____________________ you. 5. I arranged (meet) _____________________them there. 6. He urged us (work) _____________________faster. 7. I wish (see) _____________________the manager. 8. It is no use (wait) _____________________him. 9. He warned her (not touch) _____________________the wire. 10. Don’t forget (lock) ___________________the door before (go) _____________________to bed. 11. My mother told me (not speak) _____________________too anyone about it. 12. He tried (explain) _____________________but she refused (listen) _____________________. 13. At dinner she annoyed me by (smoke) _____________________between the courses. 14. He decided (disguise) __________________ himself by (dress) _______________as a women. 15. I am prepared (wait) _____________________here all night if necessary 16. Would you mind (show) ___________________me how (work) _____________________the lift. 17. After (walk) _____________________three hours, we stopped (rest) _____________________and let the others (catch) _____________________up with us. 18. I am beginning (understand) _____________________what you mean. 19. The boy likes (play) _____________________games but hates (do) ________________exercises. 20. I regret (inform) _____________________you that your application has been refused. 21. He is not allowed (stay) _____________________out late. 22. I don’t allow my family (smoke) _____________________at all. 23. He surprised us all by (go) _________________away without (say) ________________‘Good-bye’. 24. Please go on (write) _____________________; I don’t mind _____________________ (wait). 25. He wore glasses (avoid) _____________________(recognize)__________________. 26. Before (give) _______________evidence, you must swear (tell) ___________________the truth. 27. I tried (persuade) ____________________him (agree) ___________________with your proposal. 28. Your windows need (clean) ______________.Would you like me (do) ___________them for you. 29. Would you mind (shut) _______________the window? I hate (sit) _______________in a draught. 30. I can’t help (sneeze) ____________; I caught a cold yesterday from (sit) _________in a draught. 31. Stop (talk) _____________________; I am trying (finish) _____________________a letter. 32. His doctor advised him (give) _____________________up (jog) _____________________. 33. My watch keeps (stop) _____________________ working. 34. People used (make) _____________________fire by (rub) _________________two sticks together. 35. He hates (answer)________________the phone, and very often just lets it (ring)_______________. 36. If you go on (let) _____________________your dog (chase) _____________________cars he will end by (be) _____________________run over. 37. I prefer (drive) _____________________to (be) _____________________driven. 38. I advise you (start) _____________________ (look) _____________________for a flat at once. 39. Would you mind (lend) _____________me some money? I forgot (cash) __________ a cheque. 40. (Lie) _____________on the beach is much more pleasant than (sit) _____________in the office. 41. She wants her children (go) _____________to the dentist every six months. 42. An instructor is coming (show) _____________us how (use) _____________the machine. 43. I have no intention of (see) _____________that film; I couldn’t bear (see) _____________my favorite actress in such dreadful part. 44. I suggest (telephone) _____________the hospitals before (ask) _____________the police (look) _____________for him. 45. After (hear) _____________the conditions, I decided (not enter) _____________for the competition

IV. Complete the sentences. Use the causative form with “get” where possible. If “get” is not possible, use the causative form with “have”. 22. I need to ……………………………………………………………………… (the car / service) 23. The windows in this shop are usually dirty. The owners ………………………………………… regularly. (them / not clean) 24. I ……………………………………………………………………… so I had to apply to another college. (my application / turn down) 25. We should ……………………………………………………………………… (that tap / fix) 26. I …………………………………………………………… while I was on the underground. (my money / steal) 27. Where ……………………………………………………………? Was it expensive? (you / your bike / repair) 28. They ……………………………………………………………………… last week. (their electricity / cut off)

I.Rewrite the sentences in the passive. 1.The pop star sang the song. ……………………………………………………. 2.The chef hasn’t made dinner. ……………………………………………………. 3.An explorer has found a dinosaur egg. ………………………………………………… 4. Mrs Gates will look after the baby. …………………………………………… 5. They won’t take him home after the party. ………………………………………………… 6.Someone left the front door open. ……………………………………………………. 7.Jenny didn’t break the window. ……………………………………………… 8.Someone is using the computer. …………………………………………………. 9.His brother taught him to drive. ……………………………………………… 10.Many people speak English. …………………………………………………. 11.The doctor had already told him to go on a diet. ……………………………………………………. 12.The author is writing a new book. …………………………………………….

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