Answer:
yes it is preterite and perfecto Gracia's
-yo estoy estudiando.
-ella/el esta cantando.
-ellos/as estan haciendo los deberes.
-el/ella esta corrigiendo los examenes.
-el/ella esta cocinando.
The first one in English says <span>I just like pizza.
The second one says s</span>he end up buying a pencil.
The second should say She ends up buying pizza, not she end up buying pizza.
The first should sat I like pizza, not I just like pizza.
These are my two guesses. Sorry if it's wrong