跪求og语法题详解（红色为正解）

psyche9268UID: 2764426

the problem of  water pollution, frequently compounded in certain areas because the treatment and release of industrial wastes are not adquately regulated.
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Dpollution si frequently compounded in certain areas where
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1 f( F% ?5 V* f, {$ Y个人觉得A是没谓语的啊，我选的D。。



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% c9 z- P7 \+ I3 K! v2 Lhaving been a victim fo rumors,H purposely avoided gossips.
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9 u# O$ D1 p3 A' pDBecause being a victim of rumors,
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感觉A不是比D好么，D还有being..
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when cg had a magnificent dinner made for her, she was scandalized by its great cost, which became the subject of prolonged controvercy.

$ b6 }* f7 x+ T6 ]$ u3 H' A. d答案是不该，但“，which”不是不好么，老师说是指代不明还是什么的
我选的therefore becoming