I think I'll fail

The mandatory test for high school graduation are quickly approaching. While waiting with a student you ask, to make small talk, which tests he'll be taking. He signs, "I'm taking test X and I think I'll pass. I'm also taking test Y but I think I'll fail. The teacher is lazy and we never do anything!"

That teacher happens to be Deaf and works in the Deaf Ed office with you. There have been other complaints about this teacher.

Do you report back to your office supervisor that the students don't think they are well prepared for their mandatory tests?

Do you advise the student to tell the office supervisor?

Do you do nothing? After all, you are the interpreter, not a teacher or advisor.

Do you approach the teacher and tell them some of their students feel unprepared?