my baby is going to be 3years next month, she speaks very few words, but she sing the songs and understands what we says...is it normal

A. But how is your child learning all these songs and all from did you give any screen time to the child or anything because sometimes kids pick up from the screen very well but they don’t know how to do a normal conversation so you should try and communicate more and more to your child and enrol your child to play group now