按要求完成句子。
1. I buy a book today. (用yesterday 改写)
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2. I can see the bird over there. (改为否定句)
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3. He went to the US last week. (对画线部分提问)
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4. It’s three dollars and seventy-five cents. (对画线部分提问)
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5. Daming went to the US. (改为一般疑问句)
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