Answer:
1. I must exercise and drink water every day.
2. I mustn't eat too much junk food or else I will me sick.
3. I have to eat my 5 a day.
4. Its lucky I don't have to look after my sibling today.
5. Although its a Saturday, I must still do my homework.
6. Even though I have begged my mum, I mustn't go out today.
7. My teacher told me that, I have to complete my homework by Friday.
8. They are so lucky that they don't have to stay behind class.
9. He must have his homework in by Tuesday or he will get punished.
10. I mustn't worry, its almost over.
11. Today is the worse day, as I have to complete my chores.
12. Its great that I don't have to eat my vegetables today.
Explanation:
