Estábamos sirviendo would be the answer for the nosotros form in the imperfect progressive. For future reference, you should check out the Spanish Dict online, it has all of the verbs in every form and tense :)
Nieva. Ahora es dos y media, y escuela termina. Hace frio. Pongo el abrigo y voy al coche de mis padres. Traigo mis cosas, y tengo el telefono. Uso el telefono, y digo con mi amigo. Durante el conversacion, hago la tarea.
How's this?
It's snowing. Right now it's 2:30, and school ends. It's cold. I put on my coat and go to my parents' car. I bring my things, and I have my phone. I use the phone and talk with my friend. During the conversation, I do my homework.
Irse: Voy a la farmacia
Despertarse: Nosotros nos despertamos
Cepillarse: Yo me cepillo todo los dias
Lavarse: Yo me lavo
Quedarse: Nosotros nos quedamos.
Canto muy bien means "I sing very well."
True