On speaking a foreign language in a foreign land...

So today the girls and I visited the nursery at church for the first time in a while.  We were all excited to see our friends there and the kids I worked with in the last couple years have grown up so quickly.  I remember when Monica was learning to crawl and now she is walking around and talking in a grown-up little voice.  I sat down to color with her ("but not in black because it's UGLY").  When I turned to tell Isobel something (in English) she gave me a frank stare and asked, "Why do you talk so badly?"  As if English was just very poorly pronounced Romanian and I need to work on that ... asap.