问题描述：
四年级英语智力题
What has four feet sitting on four feet waiting for four feet?
The first "four feet" stands for(指代）__________(用英语回答）
The second "four feet" stands for(指代）__________(用英语回答）
The third "four feet" stands for(指代）__________(用英语回答）
What has four feet sitting on four feet waiting for four feet?
The first "four feet" stands for(指代）__________(用英语回答）
The second "four feet" stands for(指代）__________(用英语回答）
The third "four feet" stands for(指代）__________(用英语回答）
问题解答：
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