Make the sentences complete using either the Past Continiuous or the

Make the sentences complete using either the Past Continiuous or the Past Indefinite of the verbs in brackets.

1) When I switched on the light I ... . (see a strange scene)
2) When the lecturer the room the students ... . (talk in loud voices and laugh)
3) He heard a strange noise when he ... . (come up to the house)
4) Nobody was listening to what he ... . (say)
5) When I entered the shop the shop-girl ... . (show a nice dress to an elderly LADY)
6) Mr. Brown was making a call when his secretary ... . (bring in the morning post)
7) When she was five her mother ... . (teach her English)
8) It was already lae and the people ... . (leave the party)
9) The ball was at its peak when John ... . (arrive)
10) The ship ran against a rock and ... ( sink) quickly.
11) It wasa cold and a strong wind ... . (blow from the North)
12) The patient was very ill and people ... . (talk in low voices)