题目内容
When they arrived at the airport, their plane_______for 10 minutes.A. took off B. had taken off C. had been off D. would take off
答案:C
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提示:
| 根据句意应使用过去完成时。
|
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题目内容
When they arrived at the airport, their plane_______for 10 minutes.A. took off B. had taken off C. had been off D. would take off
| 根据句意应使用过去完成时。
|