There is nothing else that can be done. Either they know what to do on the CAT tomorrow or they don't. I am totally freaking out on the inside.
I have a tally of completed CAT practises on the board in my classroom (a sort of public incentive to do your work). Fifteen of my now 22 Year 13 computer students have successfully completed a practise CAT. Granted, the time limit for the CAT is 60 minutes and many of those 15 took several hours (or days even) to finish the CAT practise. I have about four students who have successfully completed a practise CAT in under one hour and two that were really close. There are seven who haven't completed one. They were either absent or didn't come after school even though I said they must.
Tomorrow, first period, we see how it all shakes out.
Cross your fingers and toes.