Question 1 with 1 blank rubén cree que la lección 3 es fácil. (ellos) question 2 with 1 blankmis hermanos aprenden alemán en la universidad. (mi tía) question 3 with 1 blankaprendemos a hablar, leer y escribir en la clase de español. (yo) question 4 with 1 blanksandra escribe en su diario todos los días (every day). (tú)

In order to successfully complete this exercise, you have to rewrite the sentences given using the alternative subjects provided in brackets. Note that in order to produce a correct sentence with the new subject you will have to change the inflection of the verb in the sentences and, in some cases, any possessive adjectives contained.

Explanation:

Rubén cree que la lección 3 es fácil. (ellos)

(Ellos) creen que la lección 3 es fácil.

Mis hermanos aprenden alemán en la universidad. (mi tía)

Mi tía aprende alemán en la universidad.

Aprendemos a hablar, leer y escribir en la clase de español. (yo)

(Yo) aprendo a hablar, leer y escribir en la clase de español.

Sandra escribe en su diario todos los días (every day). (tú)

(Tú) escribes en tu diario todos los días.

Explanation:

Unlike English, Spanish is a pro-drop language. This means that it is possible to omit the subject since it is easy to recognize through the verb inflection. Spanish is a very inflective language.

To solve this exercise, it is necessary to change the subject for the ones in brackets, paying attention to the verb-subject agreement.

"Ellos, yo, and tú" can be omitted without altering the meaning of the sentence. It is not the case of "mi tía", because it depends on the context. In other words, observing the verb inflection, we see that it is the third person singular, hence, "mi tía" can be replaced by "ella or él". That is why, it is not advisable to omit the subject "mi tía".