As you walk out of the door with a person you should say “.”A. Before meB. Go ahead plea

问题补充：

As you walk out of the door with a person, you should say “.”

A. Before me

B. Go ahead, please

C. You go first

D. After you

答案：

A. Before me

B. Go ahead, please

C. You go first

(答案→)D. After you

解析：句意：当你和一个人走出门的时候，你应该说：“你先请”：After you ，容易错选成：C. You go first这是汉语式的表达，A. Before me在我前面，B. Go ahead, please请便，都不符合句意。选D。