( )11. What are they talking about?
A. A phone.
B. A computer.
C. A robot.
( )12. What can't it do according to the dialogue?
A. Dance like a good dancer.
B. Climb stairs.
C. Go fishing.

( )13. A. improve their health
B. lose weight
C. protect their eyes
( )14. A. nurses
B. doctors
C. patients
( )15. A. in the fire
B. under the buildings
C. in the water