Tom : It is so important for us to protect our invironment.
Lucy : I think so. What can we do to protect the environment ?
Lily : We can take the public transportation instead of the car.
Tom : It's a great idear. And we can also plant more trees.
Tom : It is so important for us to protect our invironment.
Lucy : I think so. What can we do to protect the environment ?
Lily : We can take the public transportation instead of the car.
Tom : It's a great idear. And we can also plant more trees.
