补全对话。根据对话内容，从右边方框中选出适当的选项补全对话。
并将选项的编号字母依次填在答题卡的相应位置。 （共 4 小题，每小题 1分；计 4 分）
David: Excuse me.
Waitress: Yes? 小题1:
David: I ordered my dish half an hour ago, but I haven’t got it yet.
Waitress: 小题2: I’m going to see if it’s ready.
(The waitress comes back from the kitchen. )
David: Sir, I’ve just checked with the kitchen and your food will come up next. 小题3:
David: Thank you.
Waitress: Please enjoy your food. Again, I’m sorry that I have kept you waiting so long.
David: 小题4:
A．Oh, here it comes.
B．It doesn’t matter.
C．I’m sorry for that.
D．What can I do for you?