From his look, we could see that he hadn’t expected that we could raise such questions to

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(答案→)A. confused; confusing
B. confusing; confused
C. confusing; confusing
D. confused; confused
解析：考查分词转动的形容词用法。Confusing令人困惑的（通常用来修饰事物）；confused感到困惑的（通常用来修饰人或者与人有关的事物）；本题用confused修饰look。句意：从他困惑的表情，我们能够看出他没有预料到我们会提出如此令人困惑的问题。故A正确。考查分词转动的形容词用法