( )11. What is the probable relationship between the speakers?
A
( )12. Why does the woman choose to travel to Harbin?
C
答案：11. A 12.C
( )16. How long will the students stay in London?
A
( )17. Why should the students wear red shirts?
B
( )18. What will the students need to take?
A
( )19. What can the students do if they have any problems?
B
( )20. When is Mrs Green in the office?
C
答案：16.A 17.B 18.A 19.B 20.C
