<prompt> 3 years old child can do ?Make bridge of 3 cubesCopy squareIdentify left and rightUse pronounce like I, you me  <response>: by 3 years the child can know it;s full name and gender,copies circle,build bridge with blocks. The child can pronounce I,u and me by 2 yrs Ref : OP GHAI - ESSENTIAL PEDIATRICS - 8 TH edition page no..52 and 53 