老师在课堂上提到了爱因斯坦的理论。

The teacher was ___referring to Einstein's theory during the lecture.

老师让我去图书馆查阅那本参考书。

The teacher ___referred me to the library for that reference book.

我不确定答案，需要查阅一下参考书。

I'm not sure about the answer, so I need to ___refer to the reference book.