Take a look at the sentence again:
Theodore bought beautiful roses for Glenda, his date. Because he did not
have a vase, he rinsed out a peanut butter jar. After Theodore __________
Glenda's reaction to the arrangement, he realized that he had not made a
favorable first impression.
The sentence requires the past tense of see, an irregular verb. Saw is the simple past form.
| Verb | Simple Present | Simple Past | Past Participle |
| see | see(s) | saw | seen |
Seen, the form you chose, requires that an auxiliary verb comes before it. Before you continue, review the rules for irregular verbs.
Go back to the sentence to try again.