Dé la forma apropiada del presente del verbo ser/estar. explica cual regla es la que aplica.

la clase muy interesante.

is it la clase es muy interesante or la clase está muy interesante.

The answer would be “La clase es muy interesante”. Está (estar) is typically used when something is not permanent but, in this sentence you are trying to say that the class is interesting in general meaning all the time therefore you would use ser to show the permanece of the fact that the class is interesting.

Incorrect. the right answer is "su nieto estudia la lecciòn"

After asking my friend about some ways they learn spanish, they told me that that use study groups to to improve there spanish skills also they constantly study and memorize the vocab and grammar. i know that the subjunctive verb is all about the mood and how the speaker feels. so anytime i have an assignment that involves subjunctive verbs i remind myself of my own feelings. i also had a friend ask me for in memorizing subjunctive verbs so we came up with our own little reminder. we came up with svamm which means subjunctive verbs affects my mood and it has a bunch. we have also started to study together!