来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/21 12:50:32
一道英语题请教,在线等~~
The manager,______ his factory's products were poor in quality, decided to give his workers further training. （2003北京春招）
A. knowing B. known C. to know D. being known
请给出分析，谢谢～!
选A.现在分词作状语,表示主动.
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