将下列表示单数的句子改成复数的句子。
1. This is a box.
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2. Do you have a new radio?
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3. There is one peach in my hand.
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4. She has a camera and an umbrella.
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5. He is a driver.
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6. That is her watch.
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7. He is a policeman.
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8. He has a good friend.
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9. What is that?
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10. This is a tomato.
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