Question

Fill the blank with the preterite tense of the verb in parentheses.

Julia y Marcos____________la televisión anoche. (mirar)

Change this verb from the present tense to the preterite tense.
Ustedes lavan

Answer for Blank 1:

The only reason I ask for these answers is because I have attempted first time and say its wrong I am very confused.

Answer 1

The answer is miraron

Answer 2

Remember that it is
-é | amos
-aste | asteis
- ó | aron

Julia Y marcos are They which is
- I | We
- You |
- He/She/ you formal | They / They girls (plural) They

Miraron (I believe)
Why i say this is because it says "they watched tv last night" (answer to 1.)