Jan was very confused about the math homework that night, so Jan called Aubrey's girlfriend to ask a question.
I thought I understood it, but when I tried to do the math homework, I was lost. Math can be confusing. I didn't know what to do. Finally it occurred to me: I could call Aubrey's girlfriend. Good thinking. Is she still good at math? Yes, she is a math tutor, and she was able to answer my question and make it all make sense for me. That was a smart idea, to give her a call. Sounds like it really saved the day.