问题描述：
The houses in this a_____ are very expensive.You shouid k_____ at the door if you want somebody to
The houses in this a_____ are very expensive.
You shouid k_____ at the door if you want somebody to open it.
The woman dressed in the 1990's f______.
The houses in this a_____ are very expensive.
You shouid k_____ at the door if you want somebody to open it.
The woman dressed in the 1990's f______.
问题解答：
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