The goods______when we arrived at the airport.A.The goods______when we arrived at the airport.A.were just unloading B.were just been unload C.were just being unloaded D.had just unload

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The goods______when we arrived at the airport.A.The goods______when we arrived at the airport.A.were just unloading B.were just been unload C.were just being unloaded D.had just unload
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The goods______when we arrived at the airport.A.The goods______when we arrived at the airport.A.were just unloading B.were just been unload C.were just being unloaded D.had just unload
The goods______when we arrived at the airport.A.
The goods______when we arrived at the airport.
A.were just unloading B.were just been unload C.were just being unloaded D.had just unload

The goods______when we arrived at the airport.A.The goods______when we arrived at the airport.A.were just unloading B.were just been unload C.were just being unloaded D.had just unload
B是乱用,were是过去时,been是过去分词,不能一起用.C是 过去进行时的被动,表示当我们到达机场的时候,货物正在被卸载.