Put the words in brackets into the Past Simple, Past Continuous, Past Perfect or Past Perfect Continuous. Peter _______ (talk) on the phone when I came to his office, so I didn't want to interrupt him.

Задание

Put the words in brackets into the Past Simple, Past Continuous, Past Perfect or Past Perfect Continuous.

Peter _______ \(talk\) on the phone when I came to his office, so I didn't want to interrupt him.