Помогите составить 2 предложения на Past Continious

What were you doing at 4 o’clock yesterday?I was having dinner with a friend. — Что ты делал вчера в 4 часа? Я обедал с другом.
She was sitting in the library from 2 till 6 yesterday. — Она просидела вчера в библиотеке с 2 до 6.
My mother was working as a cleaner that summer. — Тем летом моя мама работала уборщицей.
I looked out of the window. The sun was shining and the birds were singing. — Я выглянул в окно. Светило солнце и пели птицы.