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too many cars
rubbish in the rivers
put rubbish in the street
draw or write on the wall
cut down trees
throw rubbish anywhere
smoke from factories
waste water
plastic bags
trucks in the street
public bikes
waste bottles in the rivers
Miss Li’s city
dirty
What is dirty and messy?
the air
the streets
the rivers
What makes them dirty and messy?
?
?
?
What makes
What makes
What makes
dirty
dirty
messy
Smoke from cars makes the air dirty.
Black smoke from factories makes the air dirty.