I do not have to take a language as a requirement, but I want to take Spanish to not lose what I know. I was wondering if it is okay for me to take Spanish 107.
You need to take the placement and enroll in the level corresponding to your score, even if you do not have to take a language as a requirement. The only 100-level courses in which you can place are SPA 101, SPA 103, SPA 105, and SPA 108. In order to take SPA 107, you must have successfully completed SPA 102 or SPA 103.
You will need an interview and a confirmation test ONLY if your score is higher than SPA 108. The oral interview will be successful if your listening comprehension and speaking skills are both similar to those of students who finish SPA 108 with a B+ (ACTFL Intermediate High proficiency level; see description below).