单项选择题

Questions 5 to 7 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions.
Now listen to the conversation.
Why is the man worried about the course

A．He is starting the course late.
B．The subject is difficult for him.
C．The professor is very reserved.
D．The book is difficult to read.

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单项选择题

单项选择题

Questions 5 to 7 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now listen to the conversation. Why is the man worried about the course 您的浏览器不支持 audio 元素。