Emisor - Means : Sender
Mensaje - Means : Message
Canal - Means : Channel
Receptor - Means : Receiver
Contexto - Means : Context
Codigo - Means : Code
Enuciado - Means : Enuciado ??? Is that what u want.. I hope or i just sent u a COMPLETELY Offtopic message.
estudiantes is plural and refers to a group of people
1. voy
2. hacen
3. vio
4. fuimos
5. dio
6. fuiste