Correct mistakes: i must to eat do you must play tennis? i have ate an apple they wanted sing he saw a crocodile just may i to come in? we didn't were there was they at school? it don't like meat he sleep at 11 o'clock

I must eat
Must you play tennis.
I have eaten an apple
They wanted to sing
He has just seen a crocodile
May I come in?
We weren't there
were they at school?
It doen't like meat
He sleeps at 11 o'clock