请用其他单词或者短语替换下面括号中的内容，并且保持句意不变。
1.It is (OK) to be 15 to 30 minutes late in some areas.
2.In foreign countries, we need to respect local （traditions).
3.I entered a chess (contest) and finished third.
4.He brought his chicken to the (market).
5.I met a childhood friend at the (party).
6.Some often throw a big party to (observe) Christmas here.
7.Students are (required) to sit in the front of the conference hall.
8.John, a tough (man), cried like a baby when he got his lost son back.
9.Jack, the (owner of this house), introduced us to the other guests.
10.Although this idea is very good, not everyone (likes it very much).
