阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。
A taboo (禁忌) is a social action that is not allowed. Every culture in the world has____(it) own taboos. The breaking of a taboo sometimes makes people feel____(comfort). I learned this through my own experience.
Last weekend, Wang Lin and I showed two____(foreign) around our city. Mr. Singh was from India and Mr. White from the USA. When I____(hold) out my left hand to shake hands with Mr. Singh, he seemed to be unhappy. Mr. White,____, was quite casual. He said hello to me with a big smile and a wave of his hand.
In the evening, we stopped at a restaurant for dinner. I noticed that Mr. Singh didn't touch the beef and Mr. White seemed not____(like) chickens' claws. During the meal, Wang Lin said sorry to Mr. Singh and continued____(explain) that we didn't know it was a taboo in India to shake one's left hand. Mr. Singh explained that____oxen are sacred (神圣的) in India, people don't eat beef there. Mr. White joined in and said that____was not usual in the USA for people to eat chickens' claws. He went on to say that ____(America) don't usually get into each other's personal space. Isn't it a good lesson that needs remembering?
，则（ ）