Answer:
c. Sabe
Explanation:
In spanish when we refer to speak some language, we use the verb "saber" which in English is know. Option b is no correct because it belongs to prural form and the sentences is talking about Daniel (e.g. he).
Era
Encontró
Sabia
Hace
Sugiere
Conocen
Esta
Habla
Escucha
Oye
1. b. you use queria because if you say "quise" it means you stopped wanting to learn ballet sometime in the past.
2. b. you use conoci' because you've already met the professor in the past
