The manager_____ the workers how to improve the program since 9 a.m. A. has told B.is telling C.has ...
2022-11-24 09:46:14 114次 2015届辽宁葫芦岛第一高级中学高二下学期期初考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The manager_____ the workers how to improve the program since 9 a.m.
A. has told B.is telling C.has been telling D.will have told
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