Respuesta:
Aquí están las oraciones completadas correctamente usando "will":
7. She **will cook** next week.
8. Mitzy and Jaqui **will not practice** basketball next Saturday.
9. **Will you go** to Hawaii next vacation?
10. **Will he study** hard?
11. **Will you do** your homework?
12. **Will Robert come** to my house next month?
13. Lou **won’t visit** his grandparents in Mexico City.
14. **Will your family live** in Manzanillo?