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    精英家教网 > 高中英语 > 题目详情
    ---- You haven’t got the textbook for my chemistry course yet.
    ---- I know, and we _____ to get it for the last 5 weeks.
    A．will have been tryingB．have been trying
    C．will be trying D．had tried
    B
    考查时态。由for the last 5 weeks可知用完成时，因此排除A、C，再由上文“你还没有弄到化学教科书”，可以推测we一直到目前都在想办法，因此用现在完成进行时。for/in the last /past+段时间，常与完成时态连用，而in the past则用过去式。
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