Complete the following sentences using the correct form of the verbs in brackets. (Past Tenses)

Here are the completed sentences:

1. Did you see him yesterday?
2. What did you do then?
3. Were you waiting for me?
4. What was he doing at that time?
5. He had mysteriously disappeared.
6. Did you send the parcel yesterday?
7. Cholera broke out in many parts of the city.
8. Did you suffer any serious injuries?
9. Why didn't you inform the police?
10. He had gone away.
11. I wasn't expecting this.
12. Where did you put that book?