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.