the answer is A. Imperfecto progresivo.
The progressive imperfect is used to express something that was taking place in the past. It is formed using the verb to be in past (in this case: estaba) plus the verb ending in ing (ando, endo, in this case: cantando). It is mainly used for: on-going actions that were happening in the past.
Answer:
Mi clase de matemáticas empieza a las doce en punto. Son las once y cincuenta y cinco, así que estoy a tiempo. ¿Qué hora es la clase de ciencias? Oh, llegas tarde!
Explanation:
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Simplified:
1) state a class you have in the afternoon: <em>"Tengo una clase de matematicas en la tarde"</em>
2) state a class you have in the afternoon:<em> "La clase comienza a las 3:00 p.m."</em>
3) State at what time that class ends:<em> "La clase termina a las 4:00 p.m."</em>
4) State whether you are early, on time, or late for the class: <em>"Estoy llegando a tiempo a mi clase"</em>
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(Credit: Facundo3141592, and Zetaolivia06)
Ese señor en la foto es mi abuelo Rafael.
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Answer:
1. Marcos wants him to bring him a charger for his cell phone.
2. We advise you to think with an open mind.
3. Alejandra could live alone in the city, but it is important that she save money.
4. My friend doubted that I would achieve my goals, so he is no longer my friend.
5. My family expected my siblings to keep their uniforms clean at school.