Một ấm nhôm khối lượng 500g chứa 2 lít nước.Tính nhiệt lượng tối thiểu cần thiết để đun sôi nước ở nhiệt độ 100°C ,biết nhiệt độ ban đầu của nước là 20°C

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She (spend) ____ all her money last week. 2. Mum (not spend) ___________ any money on herself. 3. I (lend) __________ my penknife to someone, but I can't remember who it was now. 4. John and his father (build) ___________ the cabin themselves last year. 5. My parents (sell) ____________ the stereo at a garage sale. 6. ___________You (tell) ___________ anyone about this yesterday? 7. The unidentified plant (bear) ___________ gorgeous flowers. 8. She (tear) ___________ the letter to pieces and threw it in the bin. 9. He often (wear) ___________ glasses for reading. 10. Before God He (swear) ___________ he was innocent. 11. Yesterday Clouds (creep) ___________ across the horizon, just above the line of trees. 12. We both (sleep) ___________ badly that night. 13. She (weep) ___________ for the loss of her mother. 14. Jane (keep) ___________ the engine running. 15. A huge wave (sweep) ___________ over the deck. 16. Mum (pay) ___________ for my driving lessons. 17. He (lay) ___________ his hand on my shoulder. 18. He (break) ___________ the biscuit in half and handed one piece to me. 19. He (choose) ___________ his words carefully as he (speak) ___________. 20. He …………………to the zoo last Sunday (go) 21. She (not /watch)………………………………TV last night. 22. They (meet)…………………………their friends at the movie theater last week. 23. What……………you (do)…………………last night. 24. ……………………… they (buy)…………………a new car two days ago? 25. We ………….. (have) a lot of homework yesterday.

Giúp mk vs các bn ơi III. Complete the sentences, using words in the table. Sometimes, two answers are possible. Although despite in spite of however nevertheless 1. ...................... it was raining heavily, he went out without a raincoat. 2. ........................I heard the telephone ring, I didn’t answer it. 3. I like the outdoors. ................ I don’t like bugs and dirt. 4. ........................... her fear, she wrapped her arms around him. 5. The sky was grey and cloudy. ........................., we went to the beach. 6. Nevertheless, ...................... many and serious shortcomings, the long series of Depretis administrations was marked by the adoption of some useful measures. 7. We have not yet won; ....................., we shall keep trying. 8. And yet, ......................... her feelings, and relationship with him was potentiallly dangerous. 9. ...............................the issue was not discussed, it was far from out of her mind. 10. ...........................all Kutuzov’s efforts to avoid that runious encounter, the massacre of the broken mob of French soldiers by worn – out Russians continued at Krasnoe for three days. 11. It looks like they’re going to succeed ........................... their present difficulties. 12. .........................being able to bench press two of her, the men actually listened. 13. .......................she had said the words “I love you”, several times, he had not uttered them. 14. Deidre felt no pity for him, ........................ the circumstances.