Hello,
Your answer is A) Irá
Irá in english means "will." The sentence in english is: Next summer, Alejandro will (irá) go back to the Cotopaxi mountain.
Good Luck,
- I.A. -
The correct translation is: Carlos y Sofía aprenderán mucho sobre la cultura de Puerto Rico en Jayuya.
In the example above, we can see the Spanish verb <em>aprenderán</em>, which is conjugated in <em>futuro simple, modo indicativo</em> (simple future tense, indicative mood) and we can see the modal verb <em>will </em><em>in the original sentence</em>, which is also used to express <em>future</em>.
On the other hand, the<em> second example is wrong</em> because the spanish verb <em>aprenden </em>is conjugated in <em>presente, modo indicativo </em>(simple present tense, indicative mood).
- Hay diez turistas.
-Hay veintidós lápices.
-Hay quince chicos.
-Hay un autobús.
-Hay veintiún profesores.
-Hay veintinueve videos.
Trabajar means: to work
Since it's your friend that works in a restaurant, you conjugate it to él/ella/ud.
Mi amiga <em>trabaja</em> en un restaurante.