按要求改写句子。
1. I always exercise in the morning.(改为一般疑问句)
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2. My sister likes playing football .（变为否定句）
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3. I often get up at 6:00 . (变为一般疑问句)
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4.They get to the bookstore at eleven o’clock.（对划线部分提问）
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5. He is a strong and healthy boy.（改为一般疑问句）
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