Помагиииииитеее! пожалиуста!!!

1-c. I couldn't play football because I hadn't brought my boots. 2-e. When I went back to the shop they'd sold all the cheap trainers. 3-f. Helen was upset yesterday because I hadn't remember her birthday. 4-d. We got to the theatre after the play had started. 5-a. I didn't wait for you because I hadn't read your text message. 6-b. When I arrived at the airport the plane had just landed.