摘要： Cindy shut the door heavily and burst into tears. No one in the office knew she was so angry. A. where B. whether C. that D. why 答案D 考点:考查名词性从句. 解析:该空引导宾语从句.根据句意“办公室中没人知道她为什么如此生气 可判断选D 项.

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