I have no idea the cell phone isn’t working, so could you fix it for me?A．whatB．whyC．ifD．which 题目和参考答案——青夏教育精英家教网—

题目内容

I have no idea ________ the cell phone isn’t working, so could you fix it for me?

A．what

B．why

C．if

D．which

根据句子结构可知，后面的从句是一个同位语从句，作名词idea的同位语，句意为，我不知道为什么手机不能工作了，你能帮我修修吗？根据句意可知，选择B项。
【考点定位】考察名词性从句（同位语从句）

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