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linhchuot1806
2 năm trước
Hòa tan 20g CuSO4 trong nước thu thập được hỗn hợp gọi là dung dịch A. Thêm vào A 3,78g bột nhôm rồi khuấy đều hỗn hợp xảy ra phản ứng - Viết PTPU xảy ra - Hỏi khi phản ứng xảy ra hoàn toàn thì khối lượng Cu tạo thành là bao nhiêu ?
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II> Complete each of the sentences with the correct form of the verb in brackets. 1. The car began ………(make) an extraordinary noise ,so I stopped…………(see) what it was. 2. He hate………………(answer) the phone, and very often just lets it…………….(ring) 3. He tried to avoid……………..(answer) my question and refused………….(listen) my explanation. 4. Would you mind …………………..(lend) me £5? I forgot……………….(cash) a cheque. 5. I must remember ………………………(post) this letter today. It's important. 6. The joke that I told Michael made him …………………….(laugh) a lot. 7. Tim suggested ……………..(walk) for a while, but nobody wanted…………..(go) out. 8. I like ……………...(lie) on the beach. I always spend my holidays…………..(sunbathe). 9. Imagine………………(live) with someone who never stop ………………(talk). 10. Do you enjoy………(lie) on the beach?"No. I really dislike…..………..(sit) in the sun all day.' 11. Andrew doesn't mind……….(walk) home, but his sister would like ….……….(get) a taxi. 12. Sandra gave up…………….(try) to find a job in this country and decided…………….. (go) abroad. 13. Are you looking forward to……….. (see) Ann again?"Well, I expect …….…..(meet) her soon. 14. The teacher told everybody ……………..(be) quiet, but they just went on …………..(talk) 15. 'I'm trying ……………….(repair) my radio, but it doesn't work” “Why don't you try …………….... (change) the 'batteries. I think the batteries in the radio need …………(change).

I. Choose the word whose main stressed syllable is placed differently from that of the other in each group. 1. A. illiterate B. communicate C. entertainment D. traditional 2. A. programme B. downtown C. postman D. behavior 3. A. operate B. express C. emerge D. resolve 4. A. boundary B. concentrate C. conflict D. comfortable 5. A. convinced B. collaborate C. particular D. cognitive 6. A. worthwhile B. igloo C. habit D. practice 7. A. obese B. dogsled C. extend D. remote 8. A. household B. suppose C. Arctic D. diet 9. A. transformation B. independence C. understanding D. illiterate 10. A. uncontrollable B. biological C. particularly D. seniority 11. A. damage B. event C. behave D. surprise 12. A. develop B. understand C. imagine D. consider 13. A. illiterate B. communicate C. entertainment D. traditional 14. A. programme B. custom C. postman D. personality 15. A. grandparent B. violence C. buffalo D. importance

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