An old man began to collect rubbish along the river b （岸） years ago．
Rubbish （separate） into groups in many other cities now， following the practice in Shanghai．
Would you please tell me something about ？
OK． My name is Simon． I am studying at Sunshine Middle School．
Where's Sam？ I can't find him anywhere．
Oh， he has two weeks for a vacation．
I like to eat pizza and sweet food． I seldom have vegetables．
Your eating are not so good． You need to change them．
We can't throw used batteries away． ， they should be collected for special treatment．