We shall never forget the brave men and women who made the ultimate sacrifice.
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I would like somebody to open the door.
In this play you will play the part of the princess and I’ll pretend to be the witch.
Would you please allow me to stay in to finish my letter? I want to get it off to London today.
在没有特殊情况时，上下楼应（ ）。
A. 靠右侧单行
B. 靠左侧单行
C. 靠右侧并排
D. 靠左侧并排
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