◎ 题干
—It's dangerous to swim here. Look at the sign.
—Oh, I _______ notice it. Thanks for telling me.
[     ]
A. haven't
B. won't
C. don't
D. didn't
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“— It's dangerous to swim here. Look at the sign. — Oh, I ______ notice it. Thanks for telling me. [ ]A. haven't B. won't C. don't D. didn't …”主要考查了你对  【一般过去时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。