作业帮they were doing their homework when I came in.对画线句子提问 ______ ______ ______
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they were doing their homework when I came in.对画线句子提问 ______ ______ ______
they were doing their homework when I came in.对画线句子提问 ______ ______ ______
they were doing their homework when I came in.对画线句子提问 ______ ______ ______
你没有给划线内容
What does they do when you come in
What were they doing when I came in？
哪个花线了
What were they doing when you came in?