La familia de Carlos es grande. Hay ocho personas en su familia.
Daniella JUGABA con muñecas
This is the imperfect because we don't know when it started or when it ended, we just know that she "used to"
In which situation would you most likely use the usted form?
Answer : B.) con profesores.
Explanation : The second formal person in Spanish is "usted", what is said to show respect to the person you are speaking. Therefore is used with older people, teachers, police, etc.
Hope this helps!