I was eating my soup at 3 o'clock yesterday afternoon
I was studying at school at 10 o'clock this morning
I was cleaning my teeth 3 hours ago (ты же говорить будешь утром, следовательно про чистку зубов норм)
I was reading a book last Saturday
I was taking shower at 8 o'clock last night
I was playing hide-and-seek with my friends last summer
I was sleeping at half past seven yesterday morning (типо ты встаешь в школу в 8 часов)
I was learning new words this time last week