摘要：5．The doctors said it would be months Yao Ming was fit enough for regular training. A．that B．when C．since D．before 解析:考查连词.表示 “某事发生还需要多长时间 .用 “it+be+一段时间+ before引导的时间状语从句 结构.since引导时间状语从句时.前面一般用现在时 态. 答案:D

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