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anhphung20102009
2 năm trước
Làm bằng cách kẻ bảng nhé nhận biết và viết phương trình , nhớ ghi đầy đủ điều kiện phản ứng nhé Nhận biết các chất mất nhãn sau: a) metan, etilen, axetilen b) benzen, toluen, stiren c) ancol metylic, glixerol, andehit axetic
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Question 2. Read the article about doing homework then choose the best word A, B or C for each space. It is a good idea to start your homework early. If you can do it (1) ……………. your evening meal, you will have (2) ……………. time later to do things that you enjoy, like talking on the phone. It is also better to do your homework as soon as possible after the teacher has given to you. Then, if the homework is difficult and you need time to think about it, you will (3) ……………. have time to do it. Always turn off your mobile phone and the television when you (4) ……………. doing your homework. You will work a lot (5) ……………. without them. Make sure you have a quiet place to work, with (6) ……………. light and a comfortable chair. 1. A since B. before C. untill D. till 2. A. more B. much C. most D. least 3. A. still B yet C. already D. just 4. A. have B. are C. were D. will 5. A. fastest B. fast C. faster D. quick 6. A. many B. all C. little D. enough

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