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Cân bẳng các pt sau cho biết phản ứng P+02 Al + H2s04 KNO3- KNo + o2 Fe304 + H2
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Các câu hỏi liên quan

các mod giup em nha Filling each gap with a suitable phrasal verb in the box. -turn on – turn off – look for – look after – go on – look forward to – put off- 1. Mai can’t go to the movies with us tonight. She will have to ________her little sister. 2. If we ……..wasting water, there will be a shortage of fresh water in a few decades. 3. “…………………the TV, will you? I want to watch the weather forecast.” 4. “ I think I’ve lost my new pen. I’ve ……………………it everywhere. 5. Mrs. Yen forgot to ………………..the faucets when she left home for work. 6. I …………………………..hearing from you. 7. Never …………………till tomorrow what you can do today. 8. ……………………….the light! It’s very dark here. 9. Could you………………...my child why I go to the post office? 10. The television is so loud. I can’t concentrate on my work at all. - I’ll ……………..it ……………… 11. – What are you …………………………...? - My new pen. I’ve just brought it home, and now I can’t see it anywhere. 12. – …………………working hard, and you’ll succeed. - I will. 13. I have tried to ……………… a part –time job, but I haven’t found one yet. - Why don’t you look in this newspaper? Someone is ……………. a young girl who can ………………..a three –year- old child.

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