Read the text and complete it with the following options.

School years
Most adults miss their childhood. “Your school years are the best years of your life,” – have you ever heard that phrase? Just recently, while I was on my way to work, I started ... . They probably were ... for us to feel happy at school. One of them was spending every single day with friends. We didn't ... . The second one was uniform. Yes, in my opinion, the school uniform ... . It was dark green. It was unfashionable but comfortable.