please correct these...

[mineya]

hi again!i have some questions.are the followiing correct or not?

i dont have homework because there was a test today.

i am getting ready because i have to go to school.

you should do your homework early because there isnt enough time.



thanks in advance

[Tdol]

1- I'd say 'I don't have any homework'
3- 'there isn't much time' would be better to me as if there isn't enough, I probably would skip the homework.
Also, use a capital letter for 'I'.