I want to return the book to Jack but I can’t find him. He the library . you can find him

问题补充：

I want to return the book to Jack, but I can’t find him.

He the library . you can find him there.

A has been to B has gone to C has left D went to

答案：

解析：have gone to sp，表示已经去了某地，表示主语已经去了某地，或者正在去某地的路上，故选答案为B