题目内容：
阅读材料，回答题。Mind Those Manners on the Subway? So, there you are, just sitting there in the subway car, enjoying that book you just bought. 46Or the person sitting next to you takes out a nail clipper (指甲刀) and begins cutting his or her nails. Annoying?Many of us have to spend some time every day on public transportation47So, to make the trip more pleasant, we suggest the following : Let passengers get off the bus or subway car before you can get on48Stand away from the doors when they are closing. Don't talk loudly on a bus or subway.Chatting loudly with your friends can be annoying to others49Don't think your bags and suitcases ( 手提箱 ) deserve a seat of their own.Use a tissue whenever you cough or sneeze ( 打喷嚏) .An uncovered sneeze can spread germs ( 细菌 ) , especially in crowded places.Don't cut your nails or pick your nose on public transportation. Don't read over other people's shoulder50it can make people uncomfortable.They might think you're too stingy(小气的 ) even to buy a newspaper or they might think you're judging their behavior.
请在第__(46)__处填上正确答案。 A．Don't eat food in your car.
B．Don't shout into your mobile phone on a bus or subway.
C．We all know that some behaviors are simply unacceptable
D．Many people do this on subways, but it's really annoying
E．Getting off and on in an orderly manner can save time for all.
F．Suddenly, you feel someone leaning over your shoulder reading something with you
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