按要求完成下列句子。
1.Do you like climbing the hill? (作肯定回答)
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2.Are you happy? (作肯定回答)
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3.I can see her face. (改为否定句)
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4.The little girl is my sister. (对划线部分提问)
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5.There is a photo. (改为复数句)
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