1. Did Ba teach Liz Vietnamese? - Yes, he did
2. Did he email his friend a postcard? - No, he didn't
3. Did they return home yesterday? - No, they didn't
4. Did Mr Robinson buy a poster? - Yes, he did
5. Did you send me those flowers? - Yes, i did
6. Did she receive many gifts? - No, she didn't
7. Did we meet her at the meeting last week? - No, we didin't
8. Did they live in this town in 1990? - No, they didn't