1. It is very interesting to read about the ………………. traditions and customs of different countries.
2. Many people complain with the boy’s parents about his bad ……………
3. In Vietnam, it is a ………………. to call the first name of someone older than you without a title.
4. Family gathering is a common ………………. on each special events in many countries.
5. You may believe it or not, but in Denmark cemeteries are common places for people to ……………….
usual
behave
rude
occur
social
