按要求完成下列句子。

1. I can play cards. (改为否定句)

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2. There are six cats. (对画线部分提问)

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3. Can a bird fly? (作肯定回答)

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4. This is a monkey. (改为一般疑问句)

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5. The deer is under the big tree. (用where提问)

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6. Four pigs are on the farm. (用how many提问)

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