按要求改写句子。

1. I can take pictures for my family. (写出同义句)

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2. My father bought some cards for us. (变成一般疑问句)

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3. He was a special baby. (变成感叹句)

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4. What would you like for Christmas? (用a new car回答)

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5. Jenny ate cereal for breakfast. (变成否定句)

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按材料的组合方式分类的墙体（）。

A、实体墙

B、空心墙

C、组合墙

D、以上都对