I think Mrs. Stark could be _______ between 50 and 60 years of age.

There are many tall buildings on ____ sides of the street .

 ---What do you think of the book , Betty ? ---It’s a good one . Each time you read it , you will find _______.

They are able to talk openly to one another whenever _________ of them feels hurt.

The teacher gave the books to all the students except       who had already taken them.