ThereportersaidthattheUFO________f

发布时间：2020-07-26 23:17:41

The reporter said that the UFO________ from east to west when he saw it.A.was travellingB.travelledC.has been travellingD.was to traveI

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A解析主句为过去时态，宾语从句要用过去时的一种．
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