◎ 题干
I ______ by a dog once and I ______ of dogs ever since.

A. was bitten; have been afraid 
B. have been bitten; was afraid
C. was bitten; was afraid          
D. have been bitten; have been afraid
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“I ______ by a dog once and I ______ of dogs ever since.[ ]A. was bitten; have been afraid B. have been bitten; was afraidC. was bitten; was afraid D. hav…”主要考查了你对  【现在完成时】【一般过去时的被动语态】  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。