My homework People can spend summer holidays in a lot of places, like village, another countries and camp. This summer vacation I spent in the several resting-places. In June I was in Spain with my mom and we were on an excursion in France and Italy. We stayed in a hotel. We went to the beach almost everyday. It was amazing and cool. In July I wS in a camp with girls from glee club. There was interesting and funny.a few time we went to the lake but the weather was bad almost all days and it was sad. End of the summer I spent at me relatives. The most interesting place I have visited is the place where Cannes Film Festival is held. Also I was in Port Aventura it was so exciting. It was the most awesome summer that I've ever had.

When should use "by" and "of"?