He Beijing for a long time.A. has been awayB. has left C. has been away fromD. left

问题补充：

He Beijing for a long time.

A. has been away

B. has left

C. has been away from

D. left

答案：

A. has been away

B. has left

(答案→)C. has been away from

D. left

解析：leave是终止性动词，不能与for表示时间状语连用。