The answer is B. estudiante.
The article preceding it, 'las', is the plural feminine article. 'estudiante' in the sentence is singular only, but it is gender neutral. 'son' is the third person plural conjugation of the verb 'ser'. 'inteligentes' is an adjective that would refer to plural subjects. To fix the sentence, change 'estudiante' to 'estudiantes'.
Hablo is the answer since it is past tense.
The verb caer means 'to fall,' and it can be used in the two past tenses, preterite and imperfect, to describe things falling in the past. ... When it's used in the imperfect tense, it's describing repeated falls in the past.
I went shopping. Yesterday today tomorrow the past month the next month at this moment ?
