Thank you Saltato for your quick reply and thank you for your useful information . Honestly, my girl has a slow progress in learning English (teacher said) and she has been studying in St.Lorraine since the pre-nursary class. So, starting from the last 3 months I do a lot of revision for her after school and I just wonder does every parent does the revision at home for their kids after school catch up or maybe I am the laziest one so that my girl does not catch up well? I am a bit worried.