1 I was studying last night 2 my parents were working last Saturday 3 it was raining yesterday 4 we were doing an exam at 9 o'clock 5 I was waiting for you 6 we were speaking English
1 it wasn't raining yesterday 2 I wasn't waiting for you 3 we weren't speaking English
1 were you sleeping at 6 o'clock this morning? 2 was your mom working yesterday? 3 were you watching TV at 9 o'clock last night? 4 was your teacher talking 5 minutes ago? 5 were you studying English at 3 o'clock yesterday afternoon?