找出每组单词中不同类的一个。( )(1)A. fifteen B. cat C. bird( )(2)A. sixteen B. big C. twenty( )(3)A. short B. seventeen C. eleven( )(4)A. father B .mother C. eighteen
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