—You just think of yourself! You kept me wailing for at least three hours． —I’ m sorry that you _____________ think so．

 Michael ______ be a policeman, for he is much too short.

 I _____ you would come today. You _____ me a phone call in advance.

．—Without your help, we _____ this task on time.—My pleasure.

--- Is there a bus to the downtown? -----There ____ be, for it is too late now. You’d better take a taxi.