So fast ______ that it is difficult for us to imagine its speed. A.light travels B.travels light C.d...
2022-07-08 08:43:09 17次 上海市2018-2019学年高一下学期第一次月考英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
So fast ______ that it is difficult for us to imagine its speed.
A.light travels B.travels light C.does light travel D.has light travelled
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