问题补充：
-----Are you still very busy?
-----Yes, I the report for the manager and it won’t take long.
A. have just finished
B. am just finishing
C. had just finished
D. am just going to finish
答案：
A. have just finished
(答案→)B. am just finishing
C. had just finished
D. am just going to finish
解析：考察时态。句意：—你还在忙吗？—是的。我就要写完经理的报告了，不会耽误太久时间。本题的关键就是it won’t take long，说明本句讲述的是现在所发生的事情。本句指使用现在进行时代替将来时，所使用的动词必须是位置变化性的动词。故B正确。
