Положите глаголы в подходящую форму, Past Continuous, Past Perfect or Past

Положите глаголы в подходящую форму, Past Continuous, Past Perfect or Past Perfect
Continuous.
1. It was very noisy next door. Our neighbours ____________ (have) a party.
2. We were good friends. We _________ (know) each other for years.
3. John and I went for a walk. I had difficulty keeping up with him because he
________ (walk) so fast.
4. Sue was sitting on the ground. She was out of breath. She _________ (run).
5. When we arrived, everybody was sitting round the table and talking. Their
mouths were empty, but their stomachs were full. They _________ (eat).