— It’s a very interesting book. — ________. — And thank you very much for letting me keep it so long.
_____ opening ceremony of the 29th Beijing Olympic Games really gave the world ____ big surprise.
_____, please come to see me.
We _____ had told her that she failed the examination.
—I’m sorry to trouble you, madam. —_______
I’m not sure whether he has the key that ______ the door of the classroom.