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问题: 又做错了一道题! 哎! 太迷惑人了!

I was surprised by her words ,which made me recognize ________silly mistakes I had made .
A. what B. that C. how D. which

解答:

选A。 做recognize的宾语嘛,what中心修饰mistakes名词。I had made是定于从句部分,修饰mistakes,句子关系一清,所以不能选后三个答案,他们都要引导句子的。