Einstein won the Nobel Prize in 1921 and enjoyed great fame in Germany until the rise of Nazism ____ he was expelled fro

问题描述:

Einstein won the Nobel Prize in 1921 and enjoyed great fame in Germany until the rise of Nazism ____ he was expelled from Germany because he was a Jew.
A.when B.who C.then D.which
我选择的是C 是因为语义不服吗?

这里的when引导的是定语从句,修饰前面的rise of nazism,纳粹主义的崛起.
如果选then的话,句子就有两套主谓结构,语法上不合适.要选then,应该加上并列连词and,或者是吧then的首字母大写成为新的句子.