题目内容
【题目】He didn't help the old man because he didn't want to get any trouble.(对划线部分提问)
______ ______ he help the old man?
【答案】Why didn’t
【解析】
此处because he didn't want to get any trouble提问，是对原因提问，用疑问词why，根据didn’t help，助动词用didn’t。故填Why didn’t。
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