Cathy, this is Mike. I （） because I am going to meet some guests at the airport. So I will not have lunch. That’s OK. I will wait for you at supper time.A.have telephoned

B.was telephoning

C.telephoned

D.am telephoning答案：D难度：1知识点：词汇与结构部分\大学英语A\结构A\时态A

A.have telephoned

B.was telephoning

C.telephoned

D.am telephoning

正确答案：D

解析:词汇与结构部分\大学英语A\结构A\时态A