---Hello. May I speak to Bill, please?  

---- ________.        

    A. Bill speaking         B. I’m Bill     C. You are speaking to Bill            D. I’m speaking

— Hello. May I speak to Bill, please?

— ____.   

A. Bill speaking                       B. I’m Bill

C. You are speaking to Bill            D. I’m speaking

---Hello. May I speak to Bill, please?  

---- ________.        

    A. Bill speaking         B. I’m Bill     C. You are speaking to Bill            D. I’m speaking

37.[1998上海]—Hello. May I speak to Bill, please?

—________ .

—________ .