The baby has only two______.
— Listen! Is that Millie playing the piano in the room?— No, It_____ be Millie, she has gone to London.
He’s seldom late for class, ____ he? _____, even though the weather is very bad.
— Will you buy this tie for Dad?— I have no idea. I don’t know or not the colour matches his new shirt.
— Do you think Andy can be a good policeman?— Yes, I think so. He has the ability to stay when something dangerous happens.
Usually, it’s easier to make decision than to take action.