I do Italian Beginners and I did Italian for a whole year in year 8, I also do continuers French
You are much better off doing Beginners because what you did in Year 7 you will cover in a few weeks in Year 11, you go much faster in senior school. Also if you take continuers you will be compeating against people who have done italian for 2-3 years. That means they will know a lot more vocab and much more grammar
Take my example, there wasnt enough to make an Italian class in year 9 so I was thrown in the deep end by joining continuers French, I had to catch up myself only having done a term of French in Year 7, they were doing the past tense and I was still learning the present, it took me at least a term to catch up, and I admit my writing is shocking bcoz I missed the basics. I survived but since its your prelim and HSC years you are much better off taking beginners, I think continuers will be way ahead of you, you could do it but it would be to your advantage to take Italian beginners, its a great course and you learn heaps
We also have Italian girls in my beginners class, they say its difficult as they speak a dialect
Still I would ask your teacher and its up to you but I think you are better off doing the beginners, you would be eligable for the course and it would be to your advantage
GOOD LUCK and if you'd like to know more abt the course just ask