Soy (yo form, present tense) - use when describing traits about yourself (permanent traits, not thoughts/feelings/locations/etc)
Era (yo/el/ella/usted form, past tense) - directly translates to 'was.' use when describing something in the past
Answer:
Why is Rebekah happy?
Because it's the last day of school.
Because this year has been very difficult.
Because she ended up with her boyfriend.
Because he has good grades.
There you go
Did you ever get the answers to this test.