we worked day and night,（ensuring） that the work will be done in time.
we worked day and night,（ensuring） that the work will be done in time.
选项有A.to ensure B.ensure C.ensuring D.ensured 答案是选择C 我自己分析不出是为什么了时态怎么这么乱呢?
选项有A.to ensure B.ensure C.ensuring D.ensured 答案是选择C 我自己分析不出是为什么了时态怎么这么乱呢?
英语人气：958 ℃时间：2020-03-24 20:51:05
优质解答
首先分析前后两部分用逗号相连 而前一句有是一个完整的句子 所以逗号后面的部分不能是一个完整的句子 它只能做一个目的状语 即我们夜以继日的工作 为了能及时完成 又此动词与主语是主动关系 所以用ING形式
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