[音频]M: Excuse me. Have they started boarding for the 1.____to London?W: Flight BA 2.____ to London, sir?M: Yes, ma’ am. When can passengers begin to board? I have been waiting here for quite a while.W: I’m sorry. But this flight is 3.____.M: What? It is delayed? How come we got no 4.____?W: I’m very sorry for the inconvenience. 5.____ ago there was announcement. The flight is delayed 6.____ a sudden ____.M: How 8.____ will we have to wait?W: I’m terribly sorry, but I really don’t know for 9.____ now. I’ll keep you 10. ____ as soon as possible.