Все предложение стоит во множнственном числе, тебе надо изменить его на единственное число: The postmAn bringS the mail twice a day. -почтальон пииносит почту дважды в день.
My quarantine is boring, but I am trying to do something that will make me happy. My favorite activity is watching films with my family. Also, I really like calling my friends and talk with them! I wish I could hang out with my friends. Anyways I should do my homework. I’m trying to do it as best as I can. Homework is important for me. On the one hand, quarantine is the good way to study and spend time with your family. On the over hand, quarantine is boring. In my opinion it’s necessary to stay at home to avoid this virus.
1) Do they speak English? They don't speak English. 2) Do children usually sleep very soundly? Children don't usually sleep very soundly. 3) Do Englishmen ever speak at breakfast? Englishmen never speak at breakfast. 4) Do we live in a large house? We don't live in a large house. 5) Does he LEAVE home at 9 every day? He doesn't LEAVE home at 9 every day. 6) Does my (your) friend know English well? My (your) friend doesn't know English well. 7) Does our teacher speak French well? Our teacher doesn't speak French well. 8) Does her brother live in Pskov? Her brother doesn't live in Pskov.