Yesterday I took Tom’s schoolbag .
A. in mistake B. by mistake
C. with mistake D. for mistake
We should do what we can our environment.
A. protect B. be protected
C. protected D. to protect
I don’t think he is an honest boy, ?
A. do I B. isn’t he
C. is he D. don’t I
Waste paper shouldn’t everywhere. We must keep our school clean.
A. have thrown B. throw
C. be thrown D. be throwing
Please check your paper to there are no mistakes.
A. think of B. find out
C. look up D. make sure
I didn’t know .
A. when would the bus arrive
B. what has been done
C. who left the message
D. where did he fix up the bike
