Past simple or past continuous? 1)somebody (knock)on the front door as

1. Somebody knocked on the front door when I was having breakfast. Past Simple/Past Continuous

2. Where were you living this time last year? Past Continuous

3. Peter didnt look at me as (when) he was speaking. Past Continuous (в значении "Питер не посмотрел на меня, когда он произносил речь")