Take a look at the sentence again:
Giselle dreaded attending her US Government class. Whenever Dr. Duncan called
on her, Giselle felt as if she had __________ in her chair; she couldn't
open her mouth, let alone answer one of his questions.
The sentence requires the past participle of freeze, an irregular verb. Frozen is the past participle.
| Verb | Simple Present | Simple Past | Past Participle |
| freeze | freeze(s) | froze | frozen |
Freezed, the form you chose, is a spelling error. Before you continue, review the rules for irregular verbs.
Go back to the sentence to try again.