当我到达机场时,飞机正在起飞.(When/While)I arrived at the airport,the plane was taking off.

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当我到达机场时,飞机正在起飞.(When/While)Iarrivedattheairport,theplanewastakingoff.当我到达机场时,飞机正在起飞.(When/While)Iarr

当我到达机场时,飞机正在起飞.(When/While)I arrived at the airport,the plane was taking off.
当我到达机场时,飞机正在起飞.(When/While)I arrived at the airport,the plane was taking off.

当我到达机场时,飞机正在起飞.(When/While)I arrived at the airport,the plane was taking off.
When I arrived at the airport,the plane was taking off.
我最近在学这个,老师说 while 后面用V.ing
或者可以写 While the plane was taking off ,I arrived at the airportthe .
when后面一般都是V.ed 的,但也可以是V.ing,就是不常用.