Final answer:
The correct form of the verb in the blank is 'sufría'. It is used in the Presente de Subjuntivo because of the doubt expressed by Ramona's friends
Step-by-step explanation:
The correct form of the verb in the blank is sufría. The sentence would be: Ramona tiene mucha suerte por eso sus amigos dudan que ella sufría muchas presiones. In this case, the verb is in the Presente de Subjuntivo because there is doubt expressed by the friends about Ramona's situation. The verb form sufría is used because it matches the third-person singular subject 'ella'.
Learn more about Spanish verb conjugation