Answer:
Costa Rica, El Salvador, Guatemala, Honduras and Nicaragua.
Question 1: c) para describir acciones habituales del pasado
Question 2: d) estar
Question 3: b) era, nadaba
Question 4: a) ibamos
Question 5: b) sería
Question 6: a) Yo solía caminar cada día.
Question 7: d) Sara estaba enferma,
Question 8: c) We always used to study before the tests.
Question 9: b) iba, hacía
Question 10: d) Veníamos para casa y llovía.
The most known Christopher Columbus statue is located in Barcelona (Spain). It's a 60m height monument. But you can find a statue of Him in Brooklyn N.Y. (U.S.), in santo domingo (Capital of Dominican Republic), etc...
The Picture below represents the Columbus Monument in Barcelona, Spain.
Hope this Helps! :)