---Has Tom finished his position yet?
---I have no idea, he it this morning.
A. would write
B. has written
C. wrote
D. was writing
网友回答
A. would write
B. has written
C. wrote
(答案→)D. was writing
解析：考查时态。根据语境及时间状语this morning可知用过去进行时。句意：——汤姆完成他的作文了吗？——我不知道，今天早上他一直在写。