Respuesta :
I think the best answer is 3, Cathy sang and danced all day, though she said she was tired. Hope this helps! ^_^
The 1st sentence is incorrect because sings is present and danced is past
The 2nd sentence is in correct due to verb tense. will sing is future and dance is present
The third sentence is correct because sang and danced are both past tense
The 2nd sentence is in correct due to verb tense. will sing is future and dance is present
The third sentence is correct because sang and danced are both past tense