当你在下午向别人问好时,说:
When is World Environment Day? It’s ___________. A.on 10th September B.on 5th June C.on 22nd April
Look, Sam is starting a poster. A.makes B.to make C.make
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