Nombre los siguientes acido, bases y sales de acuerdo con la nomenclatura tradicional y el sistema stock de cu(OH)2+ ​

In spanish, the plural form “my” to changes; mis does not change; mis changes; mi does not change; mi

Does anyone know what my spanish teacher means by this? i need to use plural forms of the verb ser. and she asked me to use a couple of adjectives to describe the boys collectively and then the girls collectively?

Choose the correct verb form. 4. ayer me la cabeza despues de la clase de espanol. (doler) 5. a quien le limpiar la casa? (tocar)