Had Mary invited her friends? Yes, dhe had/No, she hadn't
Had my father bought vegetables at the supermarket? Yes, he had/No, he hadn't
Had Sally washed her shorts? Yes, she had/No, she hadn't
Had Mary invited her friends? Yes, dhe had/No, she hadn't
Had my father bought vegetables at the supermarket? Yes, he had/No, he hadn't
Had Sally washed her shorts? Yes, she had/No, she hadn't