Answer:
1. Les vas a dar muchos regalos a tus padres.
- Vas a darles muchos regalos a tus padres.
2. Quiero comprarles unos guantes a mis sobrinos.
- Les quiero comprar unos guantes a mis sobrinos.
3. Clara va a venderle sus libros de literatura francesa a su amiga.
- Clara le va a vender sus libros de literatura a su amiga.
4. Los clientes nos pueden pagar con tarjeta de crédito.
- Los clientes pueden pagarnos con tarjeta de crédito.
Step-by-step explanation:
This exercise is about indirect object pronoun alternative placements. Keep reading in order to master this point of grammar.
1. You will give your parents many presents.
What we have to do first is identify the indirect object pronoun. A tus padres is the indirect object in the form of the third person plural, meaning it takes the pronoun les. Once it is identified (at the beginning of the sentece) we must now look for an infinitive form. Indirect object pronoun is then glued onto the infinitive form and what we get is: darles.
2. I want to buy my nephews some gloves.
In the second sentence we have the inverse case. This means we should look for an infinitive form in order to find the right indirect object pronoun. Here it's the verb comprar and we have comprarles - to buy them. We dissociate the pronoun and place it in front of the conjugated verbal form. It is very important to know that the pronouns are put in front of conjugated verbs. This way the correct alternation would be: les quiero.
3. Clara is going to sell her French literature books to her friend.
The same action should be performed as in the last sentence. First and foremost identify the infinitive form: venderle. Dissociate the pronoun from it: le. Find the conjugated verb: va. Place the pronoun in front of the conjugated verb: le va.
4. The clients can pay us with a credit card.
This last alternation to be performed is similar to the first one: we must identify the indirect object pronoun (it should be placed, as we can now be sure, in front of the conjugated verb): nos pueden pagar. We then search for an infinitive form to glue it onto. The infinitive is pagar and what we have here is pagarnos.