(2010·北京八十中学高三9月月考) 28． doesn’t seem to have been much difficulty in solving the problem． A．It B．That C．There D．He 题目和参考答案——青夏教育精英家教网—

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（2010·北京八十中学高三9月月考） 28． doesn’t seem to have been much difficulty in solving the problem．

A．It B．That C．There D．He

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