SectionA 3a部分答案
Colombia./In Colombia,it is OK to be 15 minutes late for dinner.
SectionA 3b部分答案
<1>We're pretty relaxed about time.
<2>We often just drop by our friends' homes if we have time.
<3>We don't usually have to make plans to meet our friends.
<4>It's very important to be on time.
<5>We never visit a friend's house without calling first.
<6>We almost always make plans to see friends.