Here is the item:
Christine sprang out of the
bed and saw bright sunlight streaming through the windows. She knew that
Professor Armour would not tolerate another late, so Christine
leapt back under the covers
and sleapt until noon.
The third verb, sleapt, is the problem. As you know, the sentence requires the simple past. Slept is the correctly spelled form.
| Verb | Simple Present |
Simple Past |
Past Participle |
|---|---|---|---|
| sleep | sleep(s) | slept | slept |