—He has two brothers and three sisters. Do you know ________ of them? —No, I know ________ of them. 

— Has        called the police?— Yes, Jim has.

 From mother’s love, patience and understanding, I have learned what a huge responsibility______ is to raise a child.

Of all my friends ____will be able to persuade Tom to change his mind. He is so firm upon it.

I can’t go there with you; I have ______ to do.