1. Green travel plays an
2. We can
3. Going to school by bike helps
4. Many cities are now encouraging green travel to
5. Green travel is not just about convenience; it's a responsibility to our
important
role in protecting our environment.2. We can
walk
, ride
a bike and take
a metro to school.3. Going to school by bike helps
keep
you fit.4. Many cities are now encouraging green travel to
protect
the environment(环境).5. Green travel is not just about convenience; it's a responsibility to our
planet
.答案：1.important 2.walk, ride, take 3.keep 4.protect 5.planet
Better city, better life
Our city is big and beautiful. But it was not clean many years ago. We should do our best to keep our city clean and beautiful. We can plant more trees and flowers. We shouldn't throw rubbish on the ground. We can go to school by bus or by bike. Let's do it now.
答案：Better city, better life Our city is big and beautiful. But it was not clean many years ago. We should do our best to keep our city clean and beautiful. We can plant more trees and flowers. We shouldn't throw rubbish on the ground. We can go to school by bus or by bike. Let's do it now.（仅供参考）