Помогииите!!! Поставьте глаголы из скобок в форму Past Perfect.
1. He never ... (be) to Oxford before.
2. When I found my camera the butterfly already...(fly away)
3. Sandra... (suffer) from pneumonia for many years.
4. Tony...(not appear) on TV before that.
5. My cousin...(buy) the tickets before we came.
6. I was too tired because my working day...(start) at six.