1. We woke up at the crack of dawn.

2. I got to be out digging'postholes at the crack of dawn tomorrow.

3. At the crack of dawn, our mother would wake us up to pray the rosary.

4. We were woken at the crack of dawn by the pitter patter of seagulls as they pecked for their breakfast.

5. He was up at the crack of dawn doing something unspeakable to the turkey, but the kids were up anyway.

6. Every day, she leaves at the crack of dawn to work in the rice paddy field but productivity is low because there’s little water to irrigate the field.