Acabar de + infinitive verb is used to say:

question 49 options:

a)
what someone has just done

b)
what someone will do

c)
what someone is doing

The correct answer is: a)  What someone has just done.

Explanation:

Acabar de + infitive is used to express an action that has just happened.

Acabo de llegar a casa. (I have just come home.)

Acaban de llamar a mamá. (They have just called mum.)

To form this expression, we use the verb acabar in the present tense:

1. acabo

2. acabas

3. acaba

1. acabamos                                      + DE + infinitive

2. acabáis

3. acaban

It refers to the actions that have just occurred (according to the moment of speech).

these are the words to choose from to people answer the question:

nieta--yerno--tia--tio--primo--nuera--abuelo--cunada