1. I (make) was making the cake when the light went out. I had (have) to finish it in dark.

2. I didn't want to meet Peter, so when he entered the room, I leaved (leave).

3. He (watch)was watching TV when the phone rang.

4. When I arrived, she (have)had lunch.

5. He (play)was playing the guitar outside her house when someone opened the window and (throw)thrown out a bucket of water.

6. When I (look)was looking for my passport I (find) found this old photograph.

7. You looked very busy when I (see)saw you last night. What did you (do) do?

8. When I (see)saw him, he (paint) was painting a picture.

9. When I (arrive)arrived at the station, Mary (wait)was waiting for me. She (wear) was wearinga blue dress and (look)was looking very pretty.

10. I (find) found this ring as I (dig)dig in the garden.

11. The burglar (open)was opening the safe when he (hear)heard footsteps.

12. They (build) bridge that bridge when I (be) here last year. They haven't finished it yet.

13. While I (wonder) whether to buy the dress or not,

1 makes

2leaved

3watching

4had

5playing

6looking

7 don't

8paint

9looks

10finds-dig

11hear

12building- am