—Bob has gone to California.—Oh can you tell me when he ?A. has leftB. leftC. is leavingD

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。句意：鲍勃已经去了加利福尼亚。——你能告诉我他什么时候走的（已经去加州了，说明“走”这个动作已经是过去了）结合语境可知从句强调的是过去某事的动作，故用一般过去时态。选B。