如果你想上厕所,但不知道方向,遇到一位同学,你会问:
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