Answer:
1. i HAVE TO GO
Yo voy a ir
2. The students HAVE TO STUDY
Los estudiantes van a estudiar
3. He IS GOING TO WRITE a letter,
Él va a escribir una carta
4. We ARE GOING TO EAT a sandwich
Nosotros vamos que comer un sandwich
5. They ARE GOING TO GO to school
Ellas/ellos se van a ir a la escuela
6. I am GOING TO DRINK a soda.
Yo voy a tomar una soda.