There are a lot _____ students on the playground. A. of B. in C. by
Did you finish __________ the book yesterday?
“I’m taking a long vocation. I’m going to the Great Wall.”“ _______ .When are you leaving?”
I didn’t go to bed _______ my sister came back.
He can’t play soccer__________, __________ he practices it every day.
We have _________ homework today. We don’t have any time to watch TV.