11. The thieves ....... (break) the window and....... (sneak) in.
12. What you...... (think) when you bought this ugly hat?
13. He couldn"t believe what he.....(see)
14. She ......(drive) her car when she ......(see) her friend entering the jewelry shop.
15. Michael ......( do) his homework when his mother ......(come) home.
16. When I ......(get ) up yesterday , it .......(rain) and the wind ...... (blow)
17. Ann .....(get) up early ,....... ( take) a shower ,and ...... (do) his morning exercises.
18. He ....... (tell) me that he ..... (work) on a new book.
19. I .......(study) for the test at English when you.....(call) yesterday .
20. We .....(talk) about holidays plans when the boss ....... (come) into the office,and ...... (get) angry for not doing our job.