Recommendations in a tourist place

English, O. O. (2017, 9 febrero). How to Use Should, Ought to, Supposed to and Had Better - English Modal Verbs Lesson. YouTube. https://www.youtube.com/watch?v=fMBHNI2Tyq8&feature=youtu.be

The obligation, necessity and advice is necessary to use modal verbs which help us to be very useful in our daily life.