With doubts _______ through my mind, I felt it necessary to carry out a research. A．to run B．run C．r...
2022-10-27 13:43:34 164次 2014-2015学年北京市海淀区高三上学期期末考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
With doubts _______ through my mind, I felt it necessary to carry out a research.
A．to run B．run
C．running D．having run
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