where are these people from? complete each sentence by using the correct form of the verb ser. answer all pls

Pongo la carta dentro de uno de estos

Complete the sentence with the correct form of the verb caerse in the preterite tense. yo caminando en el parque. use the following jumbled words to write a sentence, using the preterite form of verbs with the same conjugation as caerse. el gato / oir / ellos use the following jumbled words to write a sentence, using the preterite form of verbs with the same conjugation as caerse. oir / maria / no / el anuncio

Mi hermano espera que el tren a tiempo. a. llegas b. llega c. llegue d. llegues