Directions: In this section, you will hear ten
short conversations. At the end of each conversation, a question will be asked
about what was said. The conversation and question will be spoken only once.
During the pause, you must read the four choices marked A, B, C, D, and decide
which is the best answer.
A．Customs officer and travelers. B．Employer and employee. C．Business associates. D．Bank clerk and customer.