______ you were busy, I wouldn’t have bothered you with my questions.

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问题 ______ you were busy, I wouldn’t have bothered you with my questions.

选项 A、If I realized
B、Had I realized
C、Did I have realized that
D、As I realized

答案B

解析本题测试虚拟语气的用法。本句为虚拟语气，从后半句可以看出，是对过去事实的推测。所以从句应该用过去完成时。选项B虽然没有if引导词，但却是省略if的倒装句，因此B为正确答案。本句的意思是：“如果我早意识到你很忙，我就不会问你问题了。”

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成人本科学位英语

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