lista of excuses: -classic one :I forgot my homework at inicial but the teacher might put tu then to do it oral since tu did it home. -'i couldn't find my book' o it was at some one else if the homework is from a book o anything like this and it's not in your copybook , o tu lost your copybook -'i felt really sick yesterday and i couldn't do it' -if tu have a nice teacher tu can tell her tu studied hard for another class -even if tu missed school some one told tu tu had no homework , but (s)he might ask tu who and then tu might get a person in trouble -you can copy it from a friend -you excuse yourself and tu say her that tu didn't understand and if she can explain again o tu can simply just skip the class ;). Hope it helps and good luck.
This worked for me in French - and if you're able to make yourself cry, it helps.
"I was going to do my homework after cena because I was going over to my aunts house but ... as I was grabbing my bag, I heard this loud thump and then a few minutos later my little cousin burst into the living room covered in blood and we- we had to rush him up to hospital and we were there for hours..."