Calculus Two: Sequences and Series, is there any way to unlock quizzes before the session begins?

I apologise if this is a silly question or if it's been answered before - I did a few searches but didn't find much (which probably means it isn't possible, but no harm in asking, right?)

Anyway. I just completed Calculus One (from OSU, taught by Jim Fowler) and it was an absolutely fantastic course. So, I started Calculus Two.

All of the Week 1 quizzes (including the final Review quiz) are unlocked, however the subsequent quizzes are all locked until the next session begins, which is apparently September 5th. Do I really have to wait a whole week before I can do these quizzes?

So far I've been working through the courses at quite a fast pace, usually 2-3 'Weeks' per actual week. I finished Week 1 last night, and I'm just about to start the Week 2 lectures. By the time the session begins, I'll probably be most of the way through the course, except I won't have completed the quizzes.

It's not a massive problem, I'm not going for "100% completion" or anything like that (understanding the contents of the course is the main goal here), but the quizzes are good practice and they ensure that I've understood the content.

I had a look on Mooculus, but this only seems to cover Calculus One.

Alternatively, can anyone suggest some Sequences and Series-related quizzes elsewhere on the 'net where I can practice this stuff?

Thanks in advance for any and all advice!