You might try audiobooks in the car or at bedtime. My son liked those at that age. If you think she's missing milestones, I recommend an appointment with her pediatrician.

My recommendation if you go that route: explain to the scheduler that you have some development concerns and you'd like the doctor to see your daughter. However, explain that your daughter is a sponge (or whatever way you want to put it) and you'd like to speak to the doctor first without your kid present.