Ответ:

2.Aidar can't cook and eats ready-made meals

I wish I can cook

3.Akbota didn't eat breakfast and is starving now.

I wish I had breakfast

4.Saule didn't train enough and lost the race

If only I didn't have to lose the race

5.Korkem drank coffee after dinner and didn't sleep well.

Oh how I wish I hadn't drunk coffee

6.Inna is on a diet and can't have deserts

I wish I won't be on the diet