Speech Deley

Hi mummies i am becoming worried abt my little princess speech as now she is 2yrs 8mths :) in school she is a obedient girl as wat teachers says n at hm also she is a GD attentive girl but wat is worrying me is he speech she does not wanna say any word at times once a while she repeats wat we say jst 1 word by 1 word not so much n not clear the words wat to do???? Any parents to advise????