完成对话，从方框中选择正确选项。(方框中有一个选项与对话内容无关)

A. And I hope you can have a good time. B. Oh, but look at the dishes. C. I'm going to do the dishes. D. This is going to be difficult. E. You must remember to feed her. F. I want you to do two things for me, OK?

(Simon's parents are going to London for a day. His mom is talking with him.)

A: Simon, your father and I are going to London. First, you mustn't forget to post this letter—it's very important.

B: Don't worry, Mom. I'm going to take it to the post office in hall an hour.

A: Another thing is the dog.

B: I know. I know. Don't worry. You and Dad must go off now.

A: Right, we must go. It's late and we mustn't miss the train. I'll do it quickly before we go.

B: No, Mon. It's no problem.

A: All right then. See you soon!

B: Bye. Morn.