Well First of all Tener que means Must
so the list will be maybe like this If I understood the Question correctly
<span>Tener que tener pastel para la fiesta = must have cake for the party
Tener que </span><span>haber adivinar para la fiesta con regalos= must have guess with gifts
</span>Tener que <span>tener favores de partido = Must have party favors
hopefully I understood the question correctly and I was a help to you </span>
Estoy is a single word you can say
They are milk and cheese so it would be dairy lechería
Answer:
1. She will make a party in honor of Adela
2. Paco is becoming 15 years old
3. You are writing a composition for spanish class
4.the parents invited Your grandparents to eat
5. We will buy a gift to our grandma
Explanation
Im sorry I dont know or understand what to do for the bottom part