1.came;was having
2.returned;was listening
3.entered;was drawing
4.came in;was doing
5.was airing;caught
6.met;was going
7.was washing;knocked
8.were dancing;came
9.was washing;broke
10.didn't open
11.was hurrying;met
12.translated
13.finished
14.asked
15.wrote
16.came;saw;was playing
17.was;decided
18.saw;didn't recognize
19.was;prepared
20.was washing;was sweeping