Who do you think the book here?It may be John. He was sitting here all the mornin

发布时间：2020-08-17 12:14:13

--- Who do you think      the book here?  
--- It may be John. He was sitting here all the morning.
A. was leaving
B. leaves
C. had left
D. has left

网友回答

A. was leaving
B. leaves
C. had left
(答案→)D. has left
解析：强调过去发生的动作对现在造成了影响—书留在了这里，应该用现在完成时。
以上问题属网友观点，不代表本站立场，仅供参考！