A mixup, and in need of advice!

Hi everyone, so my first question is as a Georgetown sfs hopeful I took world sat ii: 750 and plan on taking Chinese with listening. What should the third be (preferably easy to study quickly?)
Second question and dilemma lol Before I took my February ACT I used the free score sending service and Georgetown was one of the schools. I got a 30 on that test -_- i got a 2200 on my sats a few months later. So my question is will the 30 hurt my chances? Thanks everyone and have a great day