1. (you/dance) _______ at the party last night?
Did you dance at the party last night?
2. (she/do) ________ her homework?
Did she do her homework?
3. (Robert/work) ___________ at the post office?
Did Robert work at the post office?
4. (they/help) _________ you with the washing-up?
Did they help you with the washing-up?
