第13题: [单项选择]Many wounded soldiers died because they had been left ______ for two days. A. unattended B. unattended to C. not attended to D. unattending 参考答案:B 答案解析:此题考查动词leave的用法。leave+sth.+带有否定前缀的过去分词意为“……仍没……”。常用于此用法的形容词有undone, undiscussed,unsolved,unanswered,u