Listen!Who is talking with my motherthe phone?A. inB. onC. atD. with

问题补充：

Listen!Who is talking with my motherthe phone?

A. in

B. on

C. at

D. with

答案：

A. in

(答案→)B. on

C. at

D. with

解析：此题考查固定短语on the phone表示通过电话。