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In the first photo the season is autumn because there are a lot of dry leaves. The leaves are about of fall from the trees. In the second photo the season is summer because there is a child in a swimming pool. In my opinion, summer is the best season although it's very hot (I live in Spain and almost everyday it's sunny). In the third photo the season is spring because there are a lot of flowers, a green field and a good weather.
Match what you see in these photographs with a season of the year.