She should stop work; she has a headache because she______too long.A.is readingB.has been
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She should stop work; she has a headache because she______too long.
A.is reading
B.has been reading
C.had read
D.read
请帮忙给出正确答案和分析,谢谢!
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正确答案:B
本题考查动词时态。havebeen+动词现在分词是现在完成进行时,表示在说话时刻之前到现在正在进行并且会继续持续进行的动作。根据句中动词为现在时以及动作表示持续到说话时刻,应选B。
