The runners are taking _______their positions on the starting line. A. up B. in C. off D. on
2022-09-08 21:49:35 108次 黑龙江省哈尔滨市校2018-2019学年高二上学期第二次月考（含听力）英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The runners are taking _______their positions on the starting line.
A. up B. in C. off D. on
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