----Oh, you are here. I’m looking for you all the morning. ？--To the library.A. Where h

----Oh, you are here. I’m looking for you all the morning. ？
----To the library.
A. Where have you gone
B. Where will you go
C. Where are you going
D. Where have you been?

A. Where have you goneB. Where will you goC. Where are you going(答案→)D. Where have you been?解析：时态的考察 句意为“你在这里。我找了你一上午。”根据答语“我去了图书馆”，可知现在不在图书馆。所以应用现在完成时，have gone to “去了” have been to“去过”。

好好学习下