Answer:
-Mario <u>me</u> presta dinero. (to you, pl.)
-Ellos <u>me</u> escriben mensajes electrónicos. (to me)
-Juana <u>le</u> vende una cartera. (to him)
-La vendedora <u>nos</u> dice dónde comprar trajes de baño. (to us)
-Lola <u>me</u> da los calcetines. (to you, fam. sing.)
-El vendedor <u>les</u> ofrece un descuento. (to them)
Explanation:
yo (I)
<em>me
</em>
tú
(you) <em>te
</em>
él
(he) <em> </em><em>le
</em>
ella
(she) <em>le</em>
ellos
(we) <em>les</em>
ellas
(you) <em>les</em>
nosotros(they) <em>nos</em>
Pronouns of the Indirect Object
-The pronouns of the indirect object replace a word or phrase, which in the sentence fulfills that function (indirect object).
-The pronoun of the indirect object is placed before the verb, when it is conjugated.