16. Every __________ metres, there is a tall tree on either side of the street.
A. a few B. another C. few D. other
17. The driver who died in the accident could have ____, but he didn’t wear the seat belt.
A. competed B. recovered C. rescued D. survived
18. It would be a wonderful world if all nations lived _________ with one another.
A. in place B. in order C. at peace D. in peace
