Thể tích khí oxi(đktc) điều chế được từ 31,6 gam KMnO4 là?

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Mark letter A, B, C or D on your answer sheet to indicate the best sentence that can be made from the words given in each of the following questions. 1. Father/ always/ teach/ him/ not/ look down/people/ less. A. Fathers always taught him not to look down those people with less. B. His father always teaches him to look down for those people with less. C. Her father is always teaching him to look down in those people with less. D. His father always taught him not to look down on those people with less. 2. I/ run/ Amir/ today/ supermarket. A. I ran across Amir today at the supermarket. B. I have ran to Amir today before the supermarket. C. I would run together Amir today at the supermarket. D. I ran into Amir today at the supermarket. 3. I/ tired/ Sophie/ show/ engagement ring/ all/ time. A. I so tired of Sophie showing off her engagement ring all the time. B. I’m not tired about Sophie showing her engagement ring all time. C. I’m so tired of Sophie showing off her engagement ring all the time. D. I’m such tired for Sophie to show off her engagement ring all the time. 4. Police/would/not/give/kidnapper’s/demands. A. The police would not give tolhe kidnapper’s demands. B. The police would not give up the kidnapper’s demands. C. The police would not give away the kidnapper’s demands. D. The police would not give in to the kidnapper’s demands. 5. It/ important/ show/ time. A. It’s important to show up on time. B. It’s more important to show off in time. C. It’s the more important to show of in time. D. It’s the most important to show around before time. 6. We/ go/ have/ put/ trip/ Spain/ until/ September. A. We're going to have to put up our trip to Spain until September. B. We go to have to put of out trip to Spain until September. C. We go to have put our trip to Spain until September. D. We're going to have to put off our trip to Spain until September. 7. Hard/ he/ try, satisfied/ he/feel. A. Harder does he try, satisfied does he feel. B. Hard as he tries, the most satisfied does he feel. C. The hardest he tries, the most satisfied he feels. D. The harder he tries, the more satisfied he feels. 8. Course/ action/ efficient/previous. A. These courses of action are more efficient as the previous one. B. This course of action is more efficient than the previous one. C. Those courses of action are the more efficient in the previous day. D. This course of action is most efficient than the previous one. 9. He/ take/ hat/ show/ me/ new haircut. A. He is taking of hat to show me new haircut. B. He took off his hat to show me his new haircut. C. He takes on his hat to show for me his new haircut. D. He has taken out his hat to show me new haircut. 10. First poem/ good/ second. A. First poem is best than the second. B. The first poem is the best for the second. C. First poem is good than second. D. The first poem was better than the second.

II. Put the verb in brackets into the correct form. 1. John (play)…….football at the moment. 2. We often (write)………….tests at our school. 3. I (talk)………..to my teacher now. 4. Look! Mandy and Susan (watch)…………..…a film on TV. 5. Olivia (visit)………… her uncle every weekend. 6. Now the sun (shine)…………. …………… 7. They sometimes (read)………….. poems in the lessons. 8. Listen! The band (play)……………….the new guitar. 9. …………you (go)……… to school by bike ?. 10. Every morning, my mother (get)……………up at 6 o’clock. 11. It’s seven o’clock and they (go)…………….…. to school now. 12. Mrs. Cooper (eat) …………..in the restaurant every Sunday. 14. Look! The men (wear)………… blue uniforms. 13. Our cat never (jump)………… on the kitchen table. 14. My father (not smoke) ………………….., but my uncle smokes too much. 15. Curt always (play)…………. his guitar in the afternoon. 16. It (be)………….. early in the morning. 17. Sally (get)………..out of bed, (open)…………. the window and (go)……….. into the bathroom. Then she (have) ……………….breakfast. 18. ……… she (have)…………. breakfast at themomont ?. 19. After breakfast, Sally usually (cycle)………… to school. 20. After school, she (go)…………. back home. 21. Sally usually (have) ………….her lunch at home. 22. In the afternoon, she first (do)…………. her homework and then she (meet) …………..her friends in the park. 23. What……….she (do)………… now? 24. She …………. (not play)………… the guitar, but she (play) ………… the piano. 25. Her friends are listening and some of them ………….. (sing)…………. along. 26. The taxi (wait)……… for them at the moment. 27. He always (help)……….. his grandmother with the housework. 28. They never (eat)…………. very much. 29. Listen! Bill (play) ………….his electric guitar. 30. He (wash)………… his car every Sunday. 31. Where’s Cindy? – She (have)………….. a bath. 32. My father (live)…………. in a house near the river because he (like)………… swimming. 33. Every morning, my mother (walk)………… in the park. 34. What newspaper………you usually (read)……? – The Times. 35. Be careful! The teacher (look)………… at you. 36. ………… your mother (do)…… morning exercise every day? 37. In summer, it (be) …………. very hot, so he often (go)………… to the seaside on holiday. 38. ……you (look)…… ….for Peter? I think he (read)…is reading….books in the library. 39. Mother (cook)……in the kitchen at the moment. 40. Let’s (help)…………..her. 41. She (not /want)…….any coffee. She (want)……some tea.