Answer:
1. La Sra. Garza los compra.
2. María las tiene que hacer.
3. Antonio y María los buscan.
4. La Sra. Garza las va a confirmar.
5. María la busca.
6. Antonio lo compra.
Explanation:
Quien is the questions word for who and as in English this questions word aims for you to say the person, animal or thing that is responsible of the action is asked.
Other questions words used in spanish are these:
quién
who
qué
what
cuándo
when
dónde
where
por qué
why
cómo
how, what
cuál
which
cuáles
which ones
cuánto
how much
cuántos
how many
de dónde
from where
para qué
why, for what
adónde
to where
a quién
to whom
por dónde
where/whereabouts
con quién
with whom
Yes mis hermanos están feliz (my brothers are happy and btw if not the answer I need more info)
Close your door or tell your mom that he is singing loud so you can do your work