Make the past simple or past continuous tense

1) We were eating (eat) dinner at 8pm last night (we started eating at 7:30).
2)Yesterday I went (go) to the Post Office, bought (buy) some fruit at the supermarket and read (read) a book in the park in the afternoon.
3) We were watching (watch) TV when we heard (hear) a loud noise.
4) Julie was (be) in the garden when Laurence arrived (arrive).
5) A: What were you doing (do) at 3pm yesterday? B: I was cleaning (clean) my house.
6) Last year I visited (visit) Paris and Rome.
7) They were having (have) dinner when the police came (come) to the door.
8) He was working (work) in the garden when he found (find) the money.
9) Laura was studying (study) at 11pm last night.
10) He was sleeping (sleep) when the doorbell rang (ring).