When you use "por" or "para" your saying the word "for" so for example
enlgish: I need to go for a game
spanish:yo nesicito ir para un juego
so technically you use it when the sentence has the word "for" or the word is needed
I could help if you ask me the questions!
Answer is A: “unos analgésicos”
<span>
1.B)
tienda
2.</span><span>D)
mirar su programa favorito en la televisión
3.</span><span>A)
Compra estos pantalones.
4. dices
5.</span><span>A)
tengan
</span>
6. <span>Escucha Ud. por favor.
7.</span><span>A)
Entra usted.
8. </span><span>A)
ayude
</span>