prep-sc-152

ttc12345

152.    (33101-!-item-!-188;#058&006547)


Recent research indicates that two popular arthritis drugs are possibly not as safe as they initially believed.


(A) that two popular arthritis drugs are possibly not as safe as they initially believed
(B) that two popular arthritis drugs may not be as safe as they were initially believed to be
(C) two popular arthritis drugs to possibly not be as safe as it was initially believed
(D) the safety of two popular arthritis drugs may not be as great as it was initially believed
(E) the safety of two popular arthritis drugs not to be as great as they were initially believed to be


请问A B 的they是否都有指代不当的问题？
答案是B
但是我觉得they在两个选项中都存在指代不当的问题

毛毛carina

A 和B 的结构是不一样的，they initially believed是个主动结构；they were initially believed to be是个被动结构

A选项里drugs不能主动发出believe这个动作