题目内容：

the plane(taking off / to take off)in then minutes,all the passengers on board
with the plane(taking off / to take off)in then minutes,all the passengers on board were asked to turn off their mobile phones,

优质解答

我觉得应该是用to take off,不定式结构表示还未发生,原句的意思是飞机即将起飞,所有的乘客被要求关闭手机.