The answer is este it is used as a masculine adjective where as esto is a demonstrative pronoun for masculine and feminine nouns
Answer:
<u>the first one is </u><u>no</u><u>.</u>
<u>the second one is </u><u>si</u><u>.</u>
Explanation:
because the first one...it means that we have to overflow which makes no sense.
But the second means that we have to change trains which is much more logical...
hope it helps :)
Si(?) dice ahí, porque preguntas?