It looks ok to me, but I am not fluent in Spanish. I did pass it with an A in high school, but I could be wrong.
Note:
I will also add the list for correct version for the ones that aren't
Answers:
1st. None of them, you should check if there's a typo somewhere
2) Yo hago
- tu haces
- nosotros hacemos (nosotros hagamos is actually a correct conjuagation but i believe that it is too advanced at the moment seeing what this is)
- ellas hacen
3) Yo prefiero
- tú prefieres
- nosotros preferimos
- él prefiere
4) Tú tienes
- ella tiene
- ellas tienen
- yo tengo
5) Él camina
- tú caminas
- yo camino
- nosotros caminamos (this one is also correct but same reason as before)
