Answer: I can't see the picture but I suppose it's the one that says ''Nos vemos pronto'' or ''Te veo luego''
With adding a “s” at the end, for example with the word “sierra” if I wanted to make it plural I would just add a “s” at the end and it makes it “sierras” which is plural and also another is like with “carro” if I want to turn it into plural I’ll just simply add the “s” at the end and now it’s “carros”.
Answer:
1. Yo (abrí) un regalo de mi prima.
2. Yo (limpie) la casa cuando mi prima me llamó.
3. Yo (corrí) cuando empezó a llover.
4. Yo (trabajé) en la tienda cuando vi a mi amiga.
5. Después de hacer la tarea, yo (llame) a mi prima.
6. Al final del día, yo (leí) por media hora antes de acostarme.
Hope this helps!