7. For how many days has the young man been like this?
A. Two days. B. Three days. C. Four days.
4.( ) 5.( ) 6.( )
听一段对话,回答第7-8小题。
A B C D
1.( ) 2.( ) 3.( )
听第四段至第六段对话,完成4-6小题。