You will hear 8 short conversations. After each conversation, there will be a recorded question. After each question, there will be a pause of 10 seconds. The conversations and questions will be spoken twice. When you hear a question, you should decide on the correct answer from the 4 choices marked A, B, C and D.[音频]

A. To travel.
B. To teach.
C. To work.
D. To study.