Don’t throw away the waste paper. It needs        so that it can be reused.

It is better to teach a man how to fish than ____________ him fish. 

---What about going hiking this afternoon, Simon? --- I prefer ______ to _________ , it is too hot.

From the school name ______ on the package, we guessed that it might belong to a student of our school.           

Look at the girls        on the street.