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thubinyt
2 năm trước
Lam giup minh voi 1.Cho 70ml dung dich AlCl3 1M tac dung voi V( ml) dung dich KOH 1M. Sau phan ung hoan toan thu duoc 1.56g ket tua. Gia tri nho nhat va gia tri lon nhat cua V la
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1. Before she (watch) ………………….. TV, she (do)……………………. homework. 2. What (do) …………….. he when he (be) ………………. young? 3. After they (go) ………………………, I (sit) …………….. down and (rest) …………… 4. Yesterday, John (go) …………………. to the store before he (go) ………………… home. 5. She (win) ………………………. the gold medal in 1986. 6. Our teacher (tell) …………… us yesterday that he (visit) …………… England in 1970. 7. Alan (have)……….hardly(prepare)………..for dinner when her husband (go) ……..home 8. No sooner (have)…………….I (watch)……………. TV than the phone (ring)………… 9. Before I (watch) ……………… TV, I (do) ………………………….. my homework. 10. After I (wash)………………………….my clothes, I (sleep) …………………………… 11. “ It is the first time I have eaten sushi” , said Bill. → Bill said it (be) ……….. the first time he (eat) ……………….. sushi. 12. “ I broke my glasses yesterday”, said Lan. → Lan said that she (break) ………………………………… her glasses the day before. 13. I couldn’t attend the evening classes because I worked at night. → If I (not work) …………….. at night, I (attend) ………………….. the evening classes. 14. I didn’t have a laptop so I wish I (have) ………………………. a laptop. 15. You didn’t stay home. I would rather you (stay) …………….. home.

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