Chuyển thành câu bị động:
6. They began to plant rubber trees in big plantations.
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7. People can continue to enjoy natural resources.
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8. People will continue to drink Coca – Cola in the 21st century.
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9. American people begin to love football.
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10. Open your book.
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6. Rubber trees began to be planted in big plantations.
7. Natural resources can continue to be enjoyed.
8. Coca - Cola will continue to be drunk in the 21st century.
9. Football begins to be loved by American people.
10. Let your book be opened.