Answer and Explanation:
1. Ramón y Sara no pudieron ir a la fiesta anoche; no los viste = Ramón and Sara couldn't go to the party last night; you did not see them.
2. Buscaron el vestido perfecto por mucho tiempo, y lo encontraron en esa tienda = They searched for the perfect dress for a long time, and they found it in that store.
3. Creo que va a ser difícil encontrar un teclado y un monitor = I think it will be difficult to find a keyboard and a monitor.
4. Pídele ayuda a uno de tus amigos, , Miguel, Carlos o Francisco = Ask for help to one of your friends, Miguel, Carlos or Francisco
5. Miguel y David no saben si podemos pasar en bicicleta = Miguel and David do not know if we can go by bicycle.
6. El monitor no está conectado, no funciona = The monitor is not connected, it does not work.
How many different species of birds inhabit Costa Rica
"Las" is the definite article for mochilas.
