听力原文：F：You know, that reminds me：on my first trip to Germany, it was a long time ago, I thought it was OK to use everyone's first name so as to seem friendly. So when I was meeting this Doctor Schneider, I just kept calling him“Heinrich”, later I discovered that he was so angry that he finished the meeting early. I should have used his titles when addressing him. ?You will hear five short recordings. Five people are talking about a problem that occurred. ?For each recording. decide what each speaker is talking about. ?Write one letter (A-H) next to the number of the recording. ?Do not use any letter more than once. There are some extra letters which you do not need to use. ?You will hear the five recordings twice.