--- ______ I take some photos in the hall ? ---No, you ________.

---Could I have a word with you, mum?  ---Oh, dear, if you______.

________ you happen to see Mary, would you please ask her to come here?

—I’m going to New York this evening. Is there a flight to New York then?—There____ be a flight. But you’d better call the booking office to make sure.

---The man in a black suit _______ be our youth worker.---It _______ be him. I saw him in the classroom building some minutes ago.