Xác định thì và dạng bị động của các câu trên.

1. Bottles are placed in a recycling bin.

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2. The bottles are washed. Caps and labels are removed and the bottles are crushed. A machine shreds the bottles.

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3. Shredded bottle pieces are melted and spun into thread.

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4. The thread is made into cloth.

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5. The cloth is used to make shirts!

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