The translation for that sentence is: Who is the teacher? So you answer it with a name. Since it is a teacher you must use Mr., Ms., or Mrs. in this case, maestra is feminine so you'll need to use Señora(Mrs.) or Señorita(Ms.).
The words in the blanks are HICISTE and LLEVE
I'm pretty sure that it's ellos
Answer:
Yo estuve viendo la televisión la semana pasada.
Explanation:
The only thing you needed was mor context and the verb estoy
