1. en las playas de rincón puedes ver tiburones / ballenas / caracoles
2. cerca de 600.000 turistas visitan cada año. punta / del este / las islas / galápagos / puerto / vallarta
3. en el avión pides un asiento si te gusta ver el paisaje. de adelante / del medio de la ventanilla

The correct answers for are:

1. En las playas de Rincón puedes ver . tiburones / ballenas / caracoles Ballenas

2. Cerca de 600.000 turistas visitan cada año. Punta / del Este / las islas / Galápagos / Puerto / Vallarta punta

3. En el avión pides un asiento si te gusta ver el paisaje. de adelante / del medio de la ventanilla de la ventanilla

Explanation:

Ok to understand these answers we have to translate the exercises. The first one says 1.- In the beaches of Rincón, you can see: Sharks/whales/slugs In rincón you can see whales because it's in a geographical zone that gets crosses by whales in their migration.

2.- Near 600,000 tourists visit "Punta each year. Now In rincón, you can't find the Galápago Islands they are in Ecuador and Rincón in Uruguay. Puerto Vallarta is in Mexico, so the correct answer is punta del Este a famous beach in Uruguay.

3.- In the plane ask or a sit in the window if you like to see the landscape. adelante means ahead so if you ask the sit ahead of the window you won't see anything but if you ask it in the window you will be able to see the landscape.