Prepositions of place

Write the correct preposition (by-on-in-off): Mary is ____ the sea.

Write the correct preposition (by-on-in-off): We are ___ the city.

Write the correct preposition (by-on-in-off): Mary and Charles are ___ the coast.

Write the correct preposition (by-on-in-off): The lighthouse is ___ the coast.

Write the correct preposition (by-on-in-off): The ruins are __ the north of the country.

Write the correct preposition (by-on-in-off): My friends are ___ the island.

Write the correct preposition (by-on-in-off): The tourist were ___ the forest.