Answer:
Todos nadamos / Todos nadan (We all swim (Todos nadamos) and You all swim (todos nadan))
Yo no (Not me or no, me would be either yo no or no yo depending on what you want to say (Can I get some context?))
A la semana
los días
nado tres veces (I swim three times (tres veces is perfectly fine))
Explanation:
All were correct depending on what you wanted to say, since I didn't get any context.
17. False, this story happened during the night
18. True
19. Also true
20. False, during the story the candle was always lit
Answer:
hola abuela para la clase de hoy tengo que escribir un ensayo, tengo que escribirlo en la clase de artes del lenguaje, tengo un poco de frío en este momento, sí, me encantaría visitar tu casa