My boy could not say PTH, so when he answered the questions he used simple Eng or Cantonese. As long as he could point to the right animal/fruit/things, ie tried to respond to the teachers then it should be fine.
Hi all, my boy is studying at Fo Tan branch now. We use Cantonese at home, just say English during the story time, around 15 to 20 minutes a day. We also sing English kid songs and that's all. My boy can catch up at school and can even say B for 'basketball'. Thus I feel that it should be ok for kids to study at Joyful even the mother tongue is not Eng or PTH.