--- Hey Mr. Smith you are wanted on phone.　--- Who is calling?　--- Mr. Green. I don’t k

问题补充：

--- Hey, Mr. Smith, you are wanted on phone.

--- Who is calling?

--- Mr. Green. I don’t know who he is.

A. 不填; A

B. the; 不填

C. the; A

D. 不填；不填

答案：

A. 不填; A

B. the; 不填

(答案→)C. the; A

D. 不填；不填

解析：You are wanted on the phone.为习惯用语，意为“有你的电话”。A Mr. Green一个名叫格林的先生。