Hi! I'm new. My daughter is turning 4 in August. She still has problems with the upper lip sounds "b", "p", "m", in both Cantonese and English. Instead of "ba", "pa" and "ma", she says "ga", "ta" and "ya". In fact, her speech has improved a lot after 1 year of K1. The problem is she doesn't know how to close her lips in pronouncing these sounds. Does anyone have any similar experience? How can I correct her? Thanks.