听力原文: About 2 months ago, we ordered the new photo copiers that they were selling. But they still haven't appeared. Now they've written to say they are sorry they weren't delivered on time. They expect to deliver them by the end of this week. That's lucky, be cause I was just about to write to complain about them taking so long. I won't write now, but I still don't think we ought to just accept it. So I'm going to give them a ring to talk about the problems. If we don't say any thing, then the same thing will just happen again next time. But I'd like to keep it informal for now. (21)