—Why! Where’s my mobile phone? Maybe I left it on the plane.—My goodness! Youthings behind

问题补充：

—Why! Where’s my mobile phone? Maybe I left it on the plane.

—My goodness! Youthings behind.

A. haven’t left

B. didn’t leave

C. had never left

D. never leave

答案：

A. haven’t left

B. didn’t leave

C. had never left

(答案→)D. never leave

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