作业帮I returned from abroad about three months ago(对about three months提问）__ __ you__ from abroad?
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I returned from abroad about three months ago(对about three months提问）__ __ you__ from abroad?
I returned from abroad about three months ago(对about three months提问）__ __ you__ from abroad?
I returned from abroad about three months ago(对about three months提问）__ __ you__ from abroad?
(When did ) you( return ) from abroad?