—Hello, this is Tom speaking.
—Tom? Oh, sorry, I ______ your voice

1. A.
   didn’t realize
2. B.
   don’t realize
3. C.
   don’t recognize
4. D.
   didn’t recognize

— Hello! This is Steven Smith speaking from China Software Company. May I speak to Mr. Johnson?

— ________, I will put you through.

A. Come in, please         B. I am glad to see you C. Hold on, please         D. Don’t worry

— Hello, _________?

— This is Jack speaking.

[    ]　　

A. who is it　　 B. whose speaking 　　

C. who are you   D. who's that speaking

—Hello! This is Steven Smith speaking from China Software Company. May I speak to Mr. Johnson?

—________, I will put you through.

A. Come in please　　　　　　　　　　　　　　   B. I am glad to see you

C. Hold on, please　　　　　　　　　　　　　　  D. Don’t worry

—________, I will put you through.

A. Come in please　　　　　　　　　　　　　　   B. I am glad to see you

C. Hold on, please　　　　　　　　　　　　　　  D. Don’t worry