( )16. The accident happened _____.
A. in the street B. on the highway C. near the hospital
( )17. _____called 120 at once.
A. Bob B. Bob’s friend C. The police officer
( )18. Bob ___________ when he was found by someone passing by.
A. was fine B. was lying on the roadside C. was driving fast
( )19. Bob will have to stay in hospital for _____.
A. two or three days B. a week C. five days
( )20. _____ caused the accident
A. Bob’s car B. Bob’s driving
C. The bad weather and the crowded road