五十六；四十；三；五；四十八；七；八八；九九；四十二
—Which room are you living in?
—In _____ on the ____ floor.[ ]
A. Room 303; two
B. 303 Room; two
C. Room 303; second
D. 303 Room; second
在车辆通过后，应立即关闭挡车器或挡车栏。
