单项选择题

A．To close the door.
B．To open the door.
C．To go out of the door.
D．Not to open the door.
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单项选择题
A．Yes, I do.B．No, I didn t.C．Of course not.D．Why not
A．Yes, I do.
B．No, I didn"t.
C．Of course not.
D．Why not
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