At what age does your child know how to read A-Z and 1-10 ? And by what age should they start to talk in full sentence ?

I think my girl could recite her ABCs and 123 some time between 18-20 months. After which she started to say simple sentences with 3 words.

Depends on each child development. My son is 22 months but he can't talk except papa, mama, jiejie, 臭臭.