1. complete the sentences with had or hadn't where necessary. remember the action which happened first takes the past perfect tense. 1. kay felt angry because she hadn't closed the windows. 2. after the police had examined the flat, they found some fingerprints. 3. the found some fingerprints because the burglars used gloves. 4. after the police left, kay cleaned her flat. 5. the police arrested the burglars two days later, after they another flat. 6. one of the burglars explained that he had taken the hamster because he always wanted to have a pet. 7. the burglars left some of the pizza becaouse already had dinner.