---Where is Zhang Ming?-Oh don’t you know heto Beijing to see his parents and he’ll be

问题补充：

---Where is Zhang Ming?

---Oh, don’t you know heto Beijing to see his parents and he’ll be back tomorrow.

A. has gone B. has been C. had gone

答案：

解析：根据he’ll be back tomorrow，可知他去了北京还没回来，要用has gone to结构。