I left my pen on the desk and now it’s gone; who it? A. tookB. has takenC. will takeD. h

问题补充：

I left my pen on the desk and now it’s gone; who it?

A. took

B. has taken

C. will take

D. had taken

答案：

A. took

(答案→)B. has taken

C. will take

D. had taken

解析：用现在完成时表示影响或结果，即现在笔不见了，是由于某人已经把它拿走了的结果。