Complete the senteces with had, hadn't or nothing. 1 kay __ felt angry because she __ closed the window. 2 after the police examined the flat, they __ found some fingerprints. 3 the police __ 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 __ robbed 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 because they __ already had dinner.

1) Kay had felt angry because she hadn't closed the window.
2)After the police examined the flat, they had found some fingerprints.
3) The police hadn't found some fingerprints because the burglars had used gloves.
4) After the police had left, Kay hadn't cleaned her flat.
5) The police arrested the burglars two days later, after they  had robbed another flat.
6) One of the burglars had explained that he had taken the hamster because he had always wanted to have a pet.
7) The burglars hadn't left some of the pizza because they hadn't already had dinner.