It is considered impolite in some cultures to visit a friend withou__________him in advance.
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It's a well-known fact that China is a(n) _________nation.
A guest who knows the proper way of showing his __________to the host is welcome in any culture.
Hospitality can be defined, in some sense, as the host's ability to _________their guests and make them feel at home.
In China, people often feel_________to invite you to their weddings if you have invited them to yours earlier.