he asked me what to do at
第一个空是if 第二个是 are
He asked me what I did yesterday
He asked me what did i do yesterday afternoon
He ask me what i did yesterday afternoon.
what did you do yesterday afternoon
if 或whether，had been【人教版初中英语书上有：主句是过去时，从句要用过去完成时】
He asked me what I did yesterday afternoon.
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海上花的故事
