1played
2was playing
3was playing
4 were playing
5What was Nick doing
6What were you doing
7was not sleeping
8What did he do..?-He read...
9What was he doing, He was reading
10Was she sleeping
11didn't play, played
12wasn't playing,was playing
13was cooking
14was cooking
15washed
16were washing
17Did you do
18Were you doing
19Why was she sleeping
20was sitting