put the verbs in brackets in the correct form (past simple

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