In the Subjunctive Mood, after a that clause the correct verb form is BARE INFINITIVE (without TO). In the example provided, the verb conjugated in the Subjunctive Mood is the verb BE.
The verbs "is" and "solved" are conjugated in the Simple Present and Simple Past Tense respectively. (Indicative Mood).
On this question its really just asking you if any adult you know has ever embarrassed you before, if so tell them how and did you feel the same as peter did.