As is true of any developed society, in America a complex set of cultural signals, assumptions, and conventions underlies all social interrelationships. And, of course, speaking a language does not necessarily mean that someone understands social and cultural patterns. Visitors who fail to “translate” cultural meanings properly often draw wrong conclusions. For example, when an American uses the word “friend”, the cultural implications of the word may be quite different from those it has in the visitor’s language and culture. It takes more than a brief encounter on a bus to distinguish between courteous convention and individual interest. Yet, being friendly is a virtue that many American value highly and expect from both neighbors and strangers.

　　5. In the eyes of visitors from the outside world, _____.

　　[A]rude taxi drivers are rarely seen in the US

　　[B]small minded officials deserve a serious comment

　　[C]Canadians are not so friendly as their neighbors

　　[D]most Americans are ready to offer help

　　6. It could be inferred from the last paragraph that _____.

　　[A]culture exercises an influence over social interrelationship

　　[B]courteous convention and individual interest are interrelated