–Are you still very busy? Yes Ithe report for the manager and it won’t take long.A. ha

问题补充：

–Are you still very busy?

-- Yes, Ithe report for the manager and it won’t take long.

A. have just finished

B. had just finished

C. am just finishing

D. am just going to finish

答案：

A. have just finished

B. had just finished

(答案→)C. am just finishing

D. am just going to finish

解析：考查时态。根据语境和句意可知,我就要完成给经理的报告，故用进行时，选C。