Grammar is still so hard for my adoptees. Well, that's not true, it's only hard for Maya and Isaac. Daniel was just turning 2 at the time of adoption, so most of his speech was acquired in our home. Maya and Isaac unfortunately had heard only improper English for the first 9 and 6 years of their lives, respectively.
I was at an adoption support group recently and introduced myself to the mom sitting next to me. She had just adopted her daughter from Ethiopia 9 months earlier. When I told her I had also adopted from Africa, and told her about my kiddos, she gushed: Isn't it amazing how quickly they pick up English? My daughter has such excellent grammar and it hasn't even been a year yet.
I figured that was a more socially acceptable response than to start bawling hysterically.
(I'm being dramatic.)
(But only a little.)