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Peter was looking at some photos when Millie gave him a pencil.(对画线部分提问)
________ ________ Peter ________ when Millie gave him a pencil?
答案:What,was,doing
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题目内容
句型转换
Peter was looking at some photos when Millie gave him a pencil.(对画线部分提问)
________ ________ Peter ________ when Millie gave him a pencil?