What is the probable relationship between the two speakers?

6. What is the probable relationship between the two speakers?
A. Classmates.
B. Teacher and student.
C. Interviewer and interviewee .
7. What does the man want to do during the summer vacation?
A. Go sightseeing.
B. Do volunteer work.
C. Learn to drive.
【答案】6. A    7. B
【解析】
【原文】M:Thank goodness it’s Friday. I’m so tired. We had exams all week.
W : Yeah, I’m, tired, too. Luckily we’ve finished all the exams. We can relax during the summer holiday.
M:Yeah. And I also took my driver’s test today.
W:Finally! How did you do? Did you pass it?
M:Though the test was really difficult to me, I passed anyway.
W:You did? Congratulations.
M:Thanks.
W:Well, do you have any plans for the summer holiday? I want to go sightseeing.
M:Well, I want to volunteer in the hospital. And I think it is meaningful to do the volunteer work.