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题目
题型:不详难度:来源:
Her sister left home in1998, and       since.
A.had not been heard ofB.has not been heard of
C.had not heard ofD.has been heard of

答案
B
解析

试题分析:考查时态。根据本句中的副词since可知使用现在完成时,句意;他姐姐在1998年离开了家,从那以后就再也没有被听说过。根据句意说明使用否定句,故B正确。
点评:时态的考查要放在上下文的语境中进行,同时要抓住句子的关键词,如本题的since。
核心考点
试题【Her sister left home in1998, and       since.A.had not been heard ofB.has not be】;主要考察你对一般现在时等知识点的理解。[详细]
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