Ex.3
1. Did you do sport? Yes, I did. / No, I didn't.
2. Did you see a film? Yes, I did. / No, I didn't.
3. Did you go to bed early? Yes, I did. / No, I didn't.
4. Did you do your homework? Yes, I did. / No, I didn't.
5. Did you meet your friends? Yes, I did. / No, I didn't.
Ex.5
1. The dog was eating a sausage.
2. They weren't listening to music.
3. You were chatting online.
4. She wasn't wearing a new dress.
5. We weren't playing cards in the classroom.