A snapshot for you

I gave out a crossword puzzle to the 6th years as they finished the word search (together they were alotted 10 minutes, not a bad low key way to end a lesson), and I was asking them if they could do it, and if they looked nervous, I actually explained it. Specifically, when I asked one of my boys, he said *dekiru hazu.* SEEEE!?!?!?!? You can use it like that!!!! :P (dekiru = to be able to do, hazu = it is expected that, so *it:s expected that I can do it* for example kuru hazu = it is expected that I can come, (but something may come up))