单选题A: Could I talk to Prof. Lee? B:（）A Yes,speaking.B Oh, it's youC I am the operator here.
题目
单选题
A: Could I talk to Prof. Lee? B:（）
A
Yes,speaking.
B
Oh, it's you
C
I am the operator here.
Yes,speaking.
Oh, it's you
I am the operator here.