选出不同类的一项。A.class B.music room C.art room
Look, Sam is starting a poster.A.makes B.to make C.make
Plastic bags the park messy and dirty.A. make B. makes C.making
To keep the air clean,don’t to work every day.A. walk B. ride C. drive
We plastic bags 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