单项选择题
Questions 7 to 10 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.
What can we learn from the conversation(). A. Charles bought a photocopier because all sorts of people need it.
B. Charles bought a photocopier by accident.
C. There was no place nearby to provide the photocopy service.
D. Few people send fax messages abroad.