ДАЮ 20 БАЛЛОВ: Put the verbs in brackets in correct form: Past Simple or Past Continious.

1) Nelly ... (work) quietly at her desk when suddenly the door ... (open) and her younger son ... (rush) in. He ... (carry) a new-born kitten in his hands.
2)We ... drive) for 3 hours when ... (to be / start) rain heavily.
3) We ... (drive) down the road for 3 hours and then we ... (stop) at the river.

1 worked, opened, rushed, was carrying, were driving, it started to, drove, stopped.