A boy ______ a big drum in the yard _____ his mother came in.
He has __________ arms now and is able to pick the table up with one hand.
---_________ did you work out the problem in such a short time?---With Mr. Li’s help.
Dave really likes driving. I think being a __________ is just right for him.
I _____________ ride a bike to school, but I walked to school this morning.
Let’s open the windows to have some ___________air in here.