When the fans hurried to the airport they found that the famous singer .A. had leftB. has

问题补充：

When the fans hurried to the airport, they found that the famous singer .

A. had left

B. has left

C. left

D. will leave

答案：

(答案→)A. had left

B. has left

C. left

D. will leave

解析：考查时态。根据所给信息found是在过去“离开”应是在found的之前即“过去的过去”所以选用过去完成时态。粉丝们匆忙赶往机场结果发现那位著名的歌手已经走了。