We adopted 2 boys in July of 2016, they were in are foster care before that, how do i calm them. They were in foster care with us before the adoption.

Were you also the foster care parent?  If not, were they in the same foster care for more than half the year (since January 1), or did they live several places?

We were the foster parent before the adoption

In turbotax just indicate they are your children and they lived with you more than half the year (chose 7 months or longer).  Both the time after the adoption, and the time when they were foster children, count as time they lived with you for purposes of the dependent exemption, and it doesn't change how you claim them as dependents if they were foster children for a few months before being legally adopted, as long as they were in your home for both periods.