赞同曹老师解答观点

【When she was省略】asked if she opposed immunizations, she wanted to know if vaccines come from animal research. When【she is省略】 assured that they do, she replied, "Then I would have to say yes."

参考译文：当她被道她是否反对免疫接种时，她想知道疫苗是否来自动物实验。当有人向她确定疫苗是来自动物实验时，她回答说：“那我就不得不说我反对免疫接种了。

备注(1):asked if she opposed immunizations为过去分词作时间状语，相当于时间状语“when she was asked if she opposed immunizations”。省略“连词when+she was”。

备注(2:)if she opposed immunizations为过去分词(asked)后接if宾语从句。

备注(3):she wanted为句子主语和谓语动词。

备注(4):When【she is省略】 assured that they do,为省略从句“she is”do替代词，do替代“ come from animal research” they指代“vaccines”。【she is assured that为被动结构；assure her+ that(宾语从句)为主动结构】【when she is assured that they do=when she is assured that vaccines come from animal research】

备注(4):“yes”指代“she opposed immunizations=她反对免疫接种/反对防疫注射/反对打疫苗”。