Ⅳ.阅读下面短文,从短文后框内的选项中选出可以填入空白处的最佳选项。选项中有一项为多余选项。
When I first visited Hong Kong, I learnt that some rules and customs are not the same as those in the Chinese mainland. Here's what I noticed.
21. They keep space around themselves in public places. If someone
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accidentally touches the other person, both people usually say sorry and move away quickly.
People try not to speak loudly in busy areas. For example, shouting to friends across the street is not common there. 22. This good habit keeps public places quiet and peaceful.
Another difference is politeness. This politeness can be seen in restaurants. There, locals always say “thank you” to workers. People think it is quite rude to get angry and shout at them.
23. You may have to pay HK$ 3,000 for throwing litter on the ground in public. Eating or drinking on the subway might cost you HK$ 2,000. Smoking is not allowed in most parks.
Lastly, waiting in line is a must. 24. If you push ahead, people may stare（瞪着）at you because they don’t like it.
All in all, Hong Kong’s mix of the East and West creates special social rules.
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21-25 EBCAF