My parents and I went to the concert,but we weren’t able to

My mother and I wanted to see a new play,but we weren't able My mother and I wanted to se a new play, but we weren’t be a Last Saturday,my parents and I went to summer camp.We went t we ()last night ,but we went to the concert instead I went to their home,but they weren't in.They weren't ____ _ my brother and I went to the cinema to see a new film,but we I went to the movies with my friends and parents. i went to you home,but you weren't in.为什么要用weren't啊?用didn't My friend and I would like to go to the concert,but ________ My parents weren't at home yesterday,so I have to go to for I went to see you yesterday evening.But you weren't in.where I went to your house but you weren't at home.(改为同义句)