In most parts of the world, many students help their schools make less pollution(污染). They join "Environment Clubs(环境俱乐部)". In an Environment Club, people work together to make our environment clean. Here are some things students often do.
No-garbage(垃圾)lunches. How much 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 find 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, not the students and not the teachers! Cars give pollution to our air, so remember: walk, jump, bike or run. Use your legs! It's lots of fun !
Turn off the water! Did you know that some toilets can waste 20~40 m3 0f water an hour? In a year, that would fill a small river! In Environment Clubs, students mend(修理) some toilets.
We love our environment. Let's work together to make it clean.
Environment Clubs ask students_______.

A．to run to school every day

B．to take exercise every day

C．not to forget to take cars

D．not to throw away lunch bags

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

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

After students mend toilets, they won't waste（浪费）_______.

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