How he _______ get out of the prison ______ a mystery.

 The door______. Better have it repaired .

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

―Is that Miss Liu having dinner over there?―It     be her. She has gone to New York for an important business meeting.

“I’ve told him about it.” “But I’d rather you ______.”