Question

【题目】When you're invited to have dinner at home by an American friend, you should be or a little later. It's different from our Chinese custom.

A. on time B. on business

C. on show

Answer 1

【答案】A

【解析】句意：当你被邀请去一位美国朋友家吃晚饭时，你应该准时或晚一点。这和我们中国的习俗不同。考查介词短语辨析题。A. on time准时；B. on business（因公）出差；C. on show被展示/上演。根据句意语境，，结合西方文化常识，可知选A。