As a Spaniard I feel I have a right to disagree with your teacher. You do need to use accents. Ok, with computer spell checkers, SMS, etc. people are getting more sloppy. But if you want to write decently, you must use them.

I love your choice of favourite words. For me, some lovely words in Spanish are "maravilla", "cariñosa" and "murciélago".

The first three choices from your Basque list are Spanish, and you will find them in many other towns and cities.