按要求改写句子。
（1） I have got some books.  (一般疑问句)
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（2） Collecting stamps is her hobby. (对划线部分提问)
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（3） These stamps are from the US.(对划线部分提问)
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（4） She has got some stamps. (一般疑问句)
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（5）My favourite city is Hainan.  (对划线部分提问)
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