Answer:
1) preparo
2) nadamos
3) corremos
Step-by-step explanation:
1) In the first sentence the word "preparo" could be wrong for two reasons:
- If the sentence is in past tense, then the conjugation of the verb "preparar" needs an accent mark (´) → preparó
Mi madre preparó la comida (past tense)
- If the sentence is in present tense, the conjugation of the verb "preparar" for the third person singular is → prepara.
Mi madre prepara la comida. (present tense)
(The correct answer depends on what you are learning in your lessons, present tense or past tense. )
2) In the second sentence "nadamos" is wrong because the subject "Liam y Emma" is 3rd person plural (they). The correct conjugation of the verb "nadar" is → "nadaron" (past tense/third person plural).
Liam y Emma nadaron en el mar durante(*) sus vacaciones.
(*) the word durante suggests that the action took place in the past.
3) In the third sentence, "la semana pasada" means "last week", which means that the action was in the past. The word "corremos" is wrong because the conjugation of the verb "correr" is in present tense.
The correct conjugation of the verb "correr" is → "corrimos" (past tense/first person plural)
Nosotros corrimos dos veces la semana pasada.
Hope this helps! :)
* I'm fluent in Spanish