Question 7 is based on the conversation you have just heard.

Conversation Seven

W: Are you working flexible hours?

M: No, I'm not. The weather today is so nice, so I decided to walk to work, and that meant I had to leave an hour earlier than usual.

(7 ). What did the man decide to do?

解析：​​​​​​​细节理解题，这段对话的重点在男士所说的话中。他的意思是，今天天气非常好，所以他决定走路去上班，而这样的话，他必须比平时提前半小时出发。由此可推断出选walk to work和A项的go to work on foot为同义替换；C为干扰项，对话中未提及start work earlier。