GWD25-Q29中的指代问题

alancuing

•29. GWD25-Q29.
•The army cutworm moth is a critical source of fat for many of Yellowstone National Park’s grizzly bears; they overturnrocks to find them and consuming as many as 40,000 apiece in a single day.
A.bears; they overturn rocks to find them and consuming as many as
B.bears; overturning rocks to find the insects, consuming up to
C.bears, overturning rocks to find them and they consume as many as
D.bears, and they overturn rocks to find them and consume up to
E.bears, which overturn rocks to find the insects, consuming as many as 答案是E，我对A不太清楚，分号后面，这个they指代有什么限制吗？不能指代bears吗？

alancuing

原来如此，谢谢亲

panbangzhu

LZ, A中they指代的是bears，错在them，them本想指代The army cutworm moth，可是The army cutworm moth在这里是单数。还有A种and前后不平行，算是致命伤。
E中的the insects正好解决了这个问题。

alancuing

这里moth是单数，应该不会混淆啊

天叉包子

a中的两个they既可以指bear，也可以指moth，非常混乱