2. Cambiar las siguientes oraciones. Ver el nombre o el sustantivo y
pronombre.
reemplazarlo con el correspondiente
Ejemplo.
Maria is a student.
She is a student.
1. Camila have been a good student.
2. Sara and Maria have begun a course.
3. My father has worked in an office.
4. The teacher Clorinda has talked Spanish and English.
5. The class has been difficult.