单项选择题

Directions:This section is to test your ability to understand short dialogues．There are fiverecorded dialogues in it.After each dialogue,there is a recorded question.Both the dialoguesand questions will be spoken twice.When you hear a question,you should decide on the correctanswer from the four choices marked A,B,C and D given in your test paper.Then you shouldmark the corresponding letter on the Answer Sheet with a single line through the center．