—Look! The man at the gate        be our headmaster. He stands there every morning.—No, it        be him. He is holding a meeting in the office now.

If you want to book tickets for the 2012 Olympic Games, just call 00952012．It ______ be simpler．

— You           your ideas at the meeting in a different way. --- Thank you, but I was too angry then.

--Why are your eyes so red? You _______ have slept well last night.---Yeah, I stayed up late writing a report.

It has been announced that students _______ remain in their seats until all the papers have been collected.