Put the verbs in brackets in the correct form(past simple or past continuous tense.
1) When I came home my mom...dinner for us.(to cook)
2)What..you... about? (to talk)-Nothing serious
3)I'm sorry I couldn't join you yesterday.I..from my exam.(to prepare)
4)What..you... at a minute ago? (to laugh)- It was the funniest joke I've ever heard.
5)The spaceship captain... the satellite which ... very fast.(to notice / to move) It was dangerous!