She should stop work; she has a headache because she________too long.A、is readin

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问题 She should stop work; she has a headache because she________too long.

选项 A、is reading
B、has been reading
C、had read
D、read

答案 B

解析本题考查动词时态。have been+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。

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