Im in a similar boat, not quite the same (4&2) age but never the less am having the same kind of issue. my wife and her family are all jw. Myself and my family arent religious.
I think you are doing a great job at trying to teach your daughter. Keep it up, it sounds she like she is a bright kid.
its only my 4yo thats asking questions. I have found all I can really do at this point is get him interested in dinosaurs and space, hoping that he asks the right questions later.
its a funny postion to be in that ive found compromise in the marriage is important. I made certian rules for the kids like we dont say grace in our home, she doesnt use the phrase the truth to them, and of course if they dont want to go they dont have to. as my family celebrate xmas by getting drunk and eating excessively she has to come along and enjoy the fun with the kids etc.
I guess its a learning process. I have learnt to try not to seem as if im arguing with the kids about it. And ive learnt to try not to get annoyed when he tells my friends that jeh loves them. It sounds to me like youve got this under control. With your guidance Im sure she will see the real truth