6. Parents and teachers should allow teenagers to choose their own clothes.
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7. What do people use mobile phones for?
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8. Farmers grow rice in the south of China.
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9. Businessmen brought tea to the Western World in 1610.
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10. He gave me a new dictionary this morning.
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11. How many cars did the workers in this factory make in 2004?
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12. He didn’t see me in the street yesterday.
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13. The boy didn’t throw the stone just now.
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14. I can’t repair the broken kite.
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15. He doesn’t operate this machine.
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