问题描述：
The cat is under the sofa变一般疑问句,特殊疑问句和否定句,划线unde
The cat is under the sofa变一般疑问句,特殊疑问句和否定句,划线under the sofa
The cat is under the sofa变一般疑问句,特殊疑问句和否定句,划线under the sofa
问题解答：
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