A.25% | B.About 50% |
C.70% | D.Over 80% |
A.walking to school | B.traveling by train |
C.taking new fuel buses | D.having car journeys for fun |
A.To advise people to use cars less often. |
B.To encourage people to travel by train. |
C.To teach people how to use the buses. |
D.To tell people to obey traffic rules. |