1) 1. Did my son get a good mark last lesson? 2. When did my son get a good mark? 3. Did my son get a good or a bad mark last lesson? 4. My son got a good mark last lesson, didn't he? 2) 1. Did she put on a coat leaving school? 2. What did she put on leaving school? 3. Did she put on a coat or a jacket leaving school? 4. She put on a coat leaving school, didn't she? 3) 1. Didn't they sleep last night? 2. When didn't they sleep? 3. Didn't they sleep or stay awake last night? 4. They didn't sleep last night, did they?