Time waits for no man. But teenagers won’t realize the value of time until it’s gone. Don’t waste your time, you will regret it.A. and B. or C. but
It’s easy ________you to say sorry, but remember __________ be late again.
Students should pay attention to ________the teacher in class.
—Did Mr. Green tell you ________? ---Yes. He said he went there in 2012.
Alice _______ in the street when a thief stole her bag and ran away.
Many trees ____ along the streets every year. So the air is very fresh now.