Answer:
Mi amiga es
Explanation:
Aburrida is an adjective, it also gives you the information that the subject is a "girl" and that she's bored, so you will need to use the verb "is" which is "ser" in Spanish.
2nd but I’m not really sure
The adjective ´rápido ´changes into ´rápidamente' as adverb.
So you can say:
* la montaña rusa gira muy rápido
* me fui de la fiesta rápidamente. <span />
