---Hello, May I speak to John?
---      , please call back later.

补全对话
根据对话内容，从方框中选择5个恰当的句子完成对话，并将所选句子前的字母代号写在答题卡上的相应题号后。
(A New English-Chinese Dictionary is on sale in the Foreign Language Book Store. Dick is too busy to go there. He asks John to get one for him.)

A: Hello! May I speak to John, please?
B: This is John speaking.    【小题1】    
A: It’s Dick. I’m at home.
B:  【小题2】    
A: I’m looking after my mother.
B:  【小题3】    
A: She is ill. She has caught a bad cold.
B:  【小题4】   . Can I help you?
A: Yes, thank you. I hear a New English-Chinese Dictionary is on sale at the Foreign Language Book Store. Will you please go there and get one for me?
B:  【小题5】   . I’ll go right now.
A: Thank you very much.
B: You’re welcome.

—Hello, may I speak to John, please?

—        .