Răspuns:
He has already fed the puppy.
He's been feeding the puppy since I came home. He hasn't done his homework yet. He did his homework all morning. We have already learned the lesson. We were learning the lesson for 2 hours. My mother has already cooked dinner. My mother has been cooking dinner for an hour. How long have you been here? How long have you been waiting here? I haven't cleaned the house yet. I haven't cleaned the house since I arrived. I've never travelled to America. I've been travelling to America since I was little.
Explicație:
