¡hola!
Mi madre es más vieja que mi hermanito.
☺☺☺
Yo hago mi tarea todos Los dias.
The conjugation is because it's "I". In Spanish when there is an "I"/ "yo", "o" usually is the proper form to use.
You could use multiple words in that blank. For example:
Para el postre, quisiera pastel.
Para el postre, quisiera helado.
Tenìa, this is the form for imperfect