1. What time/When did you finish last night? - What time did you finish last night? 2. Yes, I enjoyed the film very much. - Did you enjoy the film? 3. They play squash three times a week. - How often do they play squash? 4. No, he didn't call me yesterday. - Did he call you yesterday? 5. It's Helen's dress. - Whose dress is it? 6. Yes, there were a lot of people at the party. - Were there a lot of people at the party?