The pump festival. The other two are more holidays than festivals.
Explanation: you have to take the verb and add: -é , ás, -á, -emos, -éis, -an. The choice depends on the person you refers to.
1- conservaré
2-contaminaran
3- cuidará
4- hará (irregular)
5- protegerás
6-pondremos (irregular)
51 - no word required
52- para
53-a
54- que
55 - no word required
56 - a
57 - no word
58- no word
59 - no word
60 - que