—I hear Jane has gone to the Holy Island for her holiday.
—Oh, how nice! Do you know when she ?
A. was leaving
B. had left
C. has left
D. left
网友回答
A. was leaving
B. had left
C. has left
(答案→)D. left
解析：因为Jane已经度假去了，“离开”此地就当然是在此之前的过去某个时间了，所以用一般过去时，选D。另外，when通常都不与完成时连用，排除B和C，A也与语境不符。