Answer:
1. The correct form of the verb "caerse" in the preterite tense for the blank is:
- Yo caí caminando en el parque.
2. The sentences using the preterite form of verbs with the same conjugation as "caerse" is:
- Ellos oyeron el gato.
- María no oyó el anuncio.
Step-by-step explanation:
The translation of the sentences is:
1.
- I fell walking in the park.}
2.
- They heard the cat.
- Maria didn't hear the announcement.
The verbs "caerse" and "oir" are irregular when conjugated in their preterite form, that is, they change substantially with respect to their infinitive form, to understand this, then there are the conjugations of these two verbs with each of the personal pronouns:
- Yo caí/oí.
- Tú caíste/oíste.
- Él cayó/oyó.
- Ella cayó/oyó.
- Ello cayó/oyó.
- Nosotros caímos/oímos.
- Ellos cayeron/oyeron.
As you can see, the two verbs have the same endings in each conjugation and in each of their conjugations the verbs change a lot, therefore, to perform the correct conjugation, I recommend that you verify to which personal pronoun you apply and use the adequate.