In most parts of the world, many students help their schools make less pollution．They join environment clubs．In an environment club, people work together to make our environment clean．
Here are some things students often do．
No-garbage lunches．How many lunch bags do you throw away after lunch? Environment clubs ask students to bring their lunches in bags that can be used again．Every week they will choose the classes that make the least garbage and report them to the whole school．
No-car day．On a no-car day, nobody comes to school in a car including the students and the teachers．Cars give pollution to us, so remember:
Walk, jump, bike, or run!
Use your legs! It's lots of fun!
Turn off the water! Do you know that some toilets can waste twenty to forty cubic meters of water an hour? In a year, that would fill in a small river. In the environment clubs, students mend those broken toilets．
We love our environment．Let's work together to make it better．
Environment clubs ask students ________.

A．to run to school every day

B．to take exercise every day

C．not to have lunch at school

D．To bring their lunches in bags that can be used again

From the passage we know the students usually have lunch ________．

A．at school	B．in shops
C．in clubs	D．at home

On a no-car day,________ will take a car to school．

A．both students and teachers	B．only students
C．neither students nor teachers	D．only teachers

After students mend toilets they save ________．

A．a small river	B．a club
C．a lot of water	D．a toilet

The writer wrote the passage to ask students to ________．

A．clean schools	B．make less pollution
C．join clubs	D．help teachers