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    精英家教网 > 高中英语 > 题目详情
    —You may find the key to the math problem on page 107.
    —Ah, it’s so simple. I wonder why I _____ of that.
    A．hadn’t thoughtB．haven’t thoughtC．didn’t thinkD．wasn’t thinking
    C

    这题考查时态的用法：句意是：--你可以发现107页的数学问题的答案。--啊，这么简单。我想知道为什么没想到。说明是过去没想到，说明过去没想到，现在想到了。选C。
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