Ask questions as in the model

Model: Ask me if I got up at six.

— Did you get up at six?

Ask me:

1. if I slept in the open air; 2. if I played chess that night; 3. whether I studied chemistry at the institute; 4. if my friend called on me last week; 5. whether my sister spent her holidays in the Crimea; 6. if I took a bus this morning; 7. if I enjoyed the performance; 8. whether I saw you yesterday.