11. Did you do you homework yesterday?
12. Were you doing...?
13. Why was she sleeping...?
14. He was sitting...
15. What was Nick doing...?
16. What were you doing...?
17. I didn't sleep...
18. What did he do...
11. Did you do you homework yesterday?
12. Were you doing...?
13. Why was she sleeping...?
14. He was sitting...
15. What was Nick doing...?
16. What were you doing...?
17. I didn't sleep...
18. What did he do...