1. без понятия, 2 - без понятия, 3 - two, 4 - manage (if I'm not mistaken), 5 - prove, 6 - Internet (I hope), 7 - where, 8 - listening, 9 - washing, 10 - could, 11 - had been, 12 - to close, 13 - the post-office is
I hope all I have written is correct :)