问题
单项选择题
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
参考答案：B
解析：
此处用现在完成时表示过去发生的动作对现在的影响或结果，即笔不见 了是由于某人已经把它拿走了。
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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
参考答案：B
解析：
此处用现在完成时表示过去发生的动作对现在的影响或结果，即笔不见 了是由于某人已经把它拿走了。