
1. if they win, he'll sing.
if they don't win, he will be unhappy.
2. if he passes, he will have a party.
if he fails, he will try again.
3. if he doesn't have the cake, he will scream.
if he eats it all, he will be ill.
Объяснение:
If he won't have the cake he will scream. If he eats it all, he'll be I'll.