This book ______ Tom’s father’s, because his name is on the book. 

—What’s your feeling now? —I am terribly sorry. If only I      here yesterday!

They have promised the money collected        be handed to the charity house.

You should have told me there was no meeting today, I ___ have run all the way here through the heavy rain.

—The contest is so easy, but you fail to pass it．—I’m sorry it ______ be this way．