When the UFO took off ,the girl was waiting for a bus.(变成一般疑问句）——_英语解答

When the UFO took off ,the girl was waiting for a bus.(变成一般疑问句）
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再加上一个
The girl was shopping when the alien got out.(用while改写句子）
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人气：398 ℃　时间：2020-05-06 15:40:23

解答

Was the girl waiting for a bus when the UFO took off
The girl was shopping while the alien was getting out.