It would be;
Antes mi hermanita le TENIA miedo a los perros.
TENIA is the past form.
Hope this helps (not sure if this is what you needed)
Usted,because you use that when you talk to someone you are not familiar with
Answer:
How do you think math skills are integrated in the commercial area
Explanation:
I think that you could create these machines in the block center. ... By engaging children in scientific and mathematical concepts through technology.
answer : usted
explanation : usted means "you" to convey the formality of a relationship
