（1）According to the passage，many people waste paper because_________ .
A.paper is cheap
B.it's easy to produce paper
C.paper is made from trees
（2）For the second advice，the speaker says we'd better________.
A.reuse paper cups or plates
B.not use plastic lunchboxes
C.bring our own chopsticks from home
（3）In order to recycle，the speaker suggests_______.
A.selling bottles for money
B.developing a recycling policy
C.putting waste into different rubbish bins （垃圾箱）
（4）The speaker mainly advises us to_________.
A.work hard at school
B.make a green school
C.protect the environment