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    精英家教网 > 高中英语 > 题目详情
    The work ____ be finished in such a short time .
    A．wasn''t able toB．couldn''tC．ought D．could
    B
    be able to 不接被动语态。表示过去“能够”，could 只能用于否定句，故 could 不正确。
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