Fill in the blank with the correct form of the verb in parenthesis.

Yo
estudiosa. Me gusta leer. (ser)

Yo soy estudiosa. Me gusta leer.

Yo soy estudiosa. Me gusta leer.

To fill in the blank with the correct form of the verb in parenthesis, we need to use the first-person singular form of the verb "ser" which is "soy".

Therefore, the correct sentence is:

Yo soy estudiosa. Me gusta leer.