【题目】The sun shines through the window in the morning. (对画线部分提问)
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【答案】When does the sun shine through the window?
【解析】
句意：在早晨太阳光穿过窗户。划线部分是时间，用when提问，句子没有be动词，借助动词does，后接动词原形，故答案为When does the sun shine through the window?