---Has Tom finished his composition yet?　 ---I have no idea he it this morning.A. would

问题补充：

---Has Tom finished his composition yet?

---I have no idea, he it this morning.

A. would write

B. has written

C. wrote

D. was writing

答案：

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。