题目内容


He's read this book before, ______?
A. hasn't he   B. doesn't he   C. isn't he
A

试题分析: 反义疑问句一般遵循前肯定则后否定，前否定则后肯定，疑问部分时态，人称要与前文保持一致。前文为肯定，故后面要用否定形式。结合时间状语before可知句子为完成时态，故疑问部分也要用完成时态，故选A。
点评：本题关键点在于对前文时态的判断，判断时态有多种方法，如时间词，上下文语境等，本题就是凭借时间词before判断出前文为完成时态，平时需加强练习。
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