—— Bob has gone to California.—— Oh can you tell me when he ?A. has left B. leftC. is lea

问题补充：

—— Bob has gone to California.

—— Oh, can you tell me when he ?

A. has left

B. left

C. is leaving

D. would leave

答案：

A. has left

(答案→)B. left

C. is leaving

D. would leave

解析：考查时态题。离开这个动作发生在过去，跟现在没有影响了。when引导的特殊疑问句不会出现完成时态。故答案选B。