Plastic bagsthe park messy and dirty.
A. make B. makes C.making
To keep the air clean,don’tto work every day.
A. walk B. ride C. drive
Weplasticbags and bottles.
A. use,make B.to use,to make C. use,to make
use too much plastic.
A. Can’t B. Shouldn’t C. Don’t
Wereuse and save water.
A. can’t B. should C. shouldn’t