Rewrite these following sentences using the first conditional

Exercise 2. Rewrite these following sentences using the first conditional.
1. We'll have pizza for lunch. We'll be hungry.
If
2. I won't know her phone number. I won't be able to call her.
Unless
3. John will be at work. He won't go with us to Chau An Village.
If
4. He won't like the decorations. He can send them back to the shop.
If
5. We won't wait for you. We won't have enough time.
If
6. I will attend an online class. I won't have to spend time commuting.
If
7. Take up this course. You will like it.
If
8. Don't tell your parents. They will be very disappointed.
Unless
9. Don't overthink, and you will feel more relaxed.
You
10. We'll set off early tomorrow. The weather will be good.
We