—Jack,comeouttothekitchentohavelunch!—Mum,waitaminute!I...

问题详情：

—Jack, come out to the kitchen to have lunch!

—Mum, wait a minute! I _____ friend of mine on the phone whom I knew when I was at college.

A. was talking to      B. am talking to         C. talked           D. have talked

【回答】

B

知识点：现在进行时及其被动式

题型：选择题