--David are you 1istening to me?--Sorry Dad. I to make sense of what the reporter said.

问题补充：

--David, are you 1istening to me?

--Sorry, Dad. I to make sense of what the reporter said.

A. was trying

B. have tried

C. am trying

D. tried

答案：

(答案→)A. was trying

B. have tried

C. am trying

D. tried

解析：句意：--大卫，你在听我说吗？--对不起，爸爸，我正试图弄明白记者说的内容。这里根据语境父亲说的时候，他没有在听，指过去正在做的事情，故用过去进行时，故选A。