句型转换。
1. My sister often watches TV every night.(对划线部分提问)
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2. The children read books five times a week.(对划线部分提问)
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3. Every night I sleep eight hours.(对划线部分提问)
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4. This picture is different from that one.(改同义句)
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5. Bill does his homework every day.(变否定句)
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