Помогите пожалуйста! Срочно нужно!

1)were; was ringing
2) I was reading 
3) didn't answer
4) didn't hear;
was listening
was

1. A: Where were you at 8:00 last night when I rang you?
    B: I was reading a magizine at home.
    A. But I called you! You didn't answer the phone. Why?
    B: Because I didn't hear it. My brother was listening to music and it was very loud.