Put the verbs into correct forms. 1. Mary_______(wait)for me when I arrived

Put the verbs into correct forms.
1. Mary_______(wait)for me when I arrived home.
2. I______(walk)along the street when I heard terrible cry.
3. What_______you_________(do) at this time yesterday?
4.He_____(not/drive) very fast when the accident happened.
5. Who_____(play) football on this ground yesterday evening?
6. When the train arrived at the station she _______ still (stand) on the platform.
7.I____(have) beautiful dream when the alatm clock rang.
8.We_____(watch) TV when suddenly we lost all the power.
9. He broke his leg when he_________(ski) in the mountains.
10. While I _________(cook) dinner I cut myself the finger.
Помогите пожалуйста!!!!