I believe that in the blank should go "sabemos"
I hope I'm correct.
The answer is 4 goodbye have a good day
It is a program that help ecologist catch vigilates
1. mira
2.abre
3.cierra
4.toma
5.pongas
6.escucha
7. saques
8. lee
9.vendas
10. escribas
11.baja
12.comete
13.cortes
14.conduce
15. asistas
16.contesta
17.arregla
18.canta
19. apagues
20.prende
21.al
22.vengas
23.hagas
24.pongas
25.ten
26.se
27.di
28.vayas
29.salgas
30.pongas
