The observations which he reported __________ marketing bothered his boss a lot. A. being concerned ...
2023-01-13 22:37:52 207次 2011-2012学年江苏省高三上学期期中考试英语题 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The observations which he reported
__________ marketing bothered his boss a lot.
A. being concerned B. concerned C.
be concerned D. concerning
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