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:
usted emapco las cosas en el maletin
Explanation:
(1) es
(2) está
(3) está
(4) son
(5) está