The manager, _____ his factory's products were poor in quality, decided to give his workers further ...
2022-09-27 06:12:30 127次 广东省中山市2017-2018学年高二下学期第一次统测（4月段考）英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The manager, _____ his factory's products were poor in quality, decided to give his workers further training.
A. knowing B. known
C. to know D. being known
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