句型转换。

1. I want to buy some gifts for my family. (否定句)

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2. It's about one kilometre from here to the cinema. (对划线部分提问)

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3. I need eleven gifts. (对划线部分提问)

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4. I will go to the store by bus. (对划线部分提问)

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护栏应在高速公路上连续设置。