prep2-94 run-on 标准

94. (29455-!-item-!-188;#058&004298)

Even though her career was cut short when she was in her prime and the fifteen recordings she

made were disappointing artistically as well as technically, Olive Fremstad (1871-1951) has never

been entirely forgotten by opera aficionados.       

(A) though her career was cut short when she was in her prime and the fifteen recordings she made

were

(B) though her career was cut short while in her prime, with the fifteen recordings she made

(C) as her career had been cut short when she was in her prime, with the fifteen recordings she had

made

(D) with her career having been cut short when she was in her prime, and the fifteen recordings she

made were

(E) with her career cut short while in her prime, and that the fifteen recordings she made were

(A)

正确答案中 when she was in her prime and
                    the fifteen recordings she made were disappointing artistically as well as technically

and 连接了两套完整的主谓结构，按照语法规则应该是 run-on, 应该在 and 前加逗号。但是如果加了逗号，会造成歧义，不知 and 后的句子平行对象是谁，所以逗号省略。看来 run-on 的语法规则也得遵从无歧义这个最大的前提。

open to talk

1. GAMT里有很多例子，and连接的并列结构（有完整主谓结构）里没有逗号。

2. 逻辑和修饰准确性为最高优先级。