Can someone explain to me why these answers are incorrect? then explain the correct the answer?

Question 1. Juan buys flowers for us.

Juan compra flores para nosotros.  

Juan nos las compra.  

Answer 1: nos las

Explanation: Transitive verbs need a direct object to complete their meaning. The direct object of the verb to buy is "flores", this is a feminine and plural noun, so the direct object pronoun is "las" that matches gender and number with the object it replaces. The indirect object is "nosotros", which is a first plural person pronoun and the indirect object pronoun is "nos" because it has to match in number with the object it replaces. When the direct and indirect object pronouns appear in the same sentence, the indirect object pronoun is always written first, so in this sentence it is "nos las".

Future Verb Sentences. Write one simple sentence in Spanish in the future tense.

Question 2: She*

Answer 2: Ella reciclará la lata de refresco.

Translation 2: She will recycle the soda can.

Question 4: The students*

Answer 4: Los estudiantes tendrán una fiesta mañana.

Translation: The students will have a party tomorrow.  

Spymore

Probably about 5’7 or a bit more of lower

3. study 4.eat 5.play american football 6.write a card 7.practice piano 8.swim in the pool 9.paint a mural 10.listen to the band 11.dance at a party 12.drink milk 13.visit panama 14.open the card 15.prepare dinner 16.stay in the house 17.watch tv 18.write on the paper 19.study spanish 20.examine the paintings in the museum. i hope this : )