Chuyển sang câu passive
1. English and French companies contructed the Channel Tunnel liking England and France from 1987 to 1994
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2. Blair invented a color television in 1928
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3. The students sang an English song beautifully
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4. They keep all of our books on the shelf
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4. Someone stole all her valuable jewellery
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5. The goverment hasn't changed the regulation
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6. Who steals my money ?
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