How to use "determination" in a sentence

Gradually, day by day, week by week, she had put Danny behind her, with sorrow, with guilt, with tears and much bitterness, but also with firmness and determination

If there were no unusual marks on his body, no injuries incompatible with the coroner's determination of suicide, the police would be quickly satisfied.

Kennebeck had lifted himself out of poverty through hard work and steely determination

Pale light from a street lamp pierced the windshield, revealing a hard-edged determination in her face, steely resolution in her blue eyes.