4.
1) were sleeping
2) were having
3) was dreaming
4) was snowing
5) weren't helping
6) wasn't working
7) weren't listening
8) was watching
9) were they going
10) was it raining
11) were you wearing
12) wasn't he looking
6) How were you feeling yesterday?
What were you wearing yesterday?
What English grammar were you studying last week?