20. Guest: Excuse me, this is room 907. Could you do me a favor? Desk clerk: What seems to be the problem, sir? Guest: I can’t flush the toilet. Plus, the sink is stuck. Desk clerk: ______________.(A) Well, it’s nice to hear you say so. (B) Oh, I am sorry. I’ll have it fixed right away. (C) Sorry. We ran out of the hot water yesterday. (D) Please fill out the form for us.