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No, it isn't.
No, I can't.

We can put the rubbish in the bin.
C
B
A lot of rubbish like banana skins, orange skins and apple skins made the park messy.
We should put the rubbish in the bins and plant more trees and flowers.
Keep our classroom clean
       Our classroom is messy and dirty. The rubbish makes it dirty. We should put rubbish in 
the bin. We should put our books in order. We can sweep the floor and clean the desks and 
chairs to make it clean. We shouldn't eat or drink in the classroom.
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