past simple + then + past simple (I ate an egg then drank a cup of tea) - one past action followed by another one, past continuous + while/when + past continuous (You were singing in the shower while I was having breakfast) - two past actions which were happening at the same time, Past continuous + while/when + past simple (I was cooking when the phone rang) - a long past action with a short past action in the middle, Past simple (My dog ate my homework) - One finished (short) past action, Past continuous (My dog was eating my homework at 8 o'clock) - One (long) past action happening at a particular past time,

Past simple/past continuous rules (Prepare 3 Unit 4)

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