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

Cathy, this is Mike. I （） because I am going to meet some guests at the airport. SoI 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
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