hi fpgee,Sorry for the late response. Inntonation is the way you speak ,your voice,tone, rhythm. for e.g when you speak to your family members, like sharing your opinion ,thoughts ,etc you wont speak in a same steady voice ,your language use will go up anddown in order to express your feelings but we dont do that in the exam because we are tensed when we are tensed we stammer and there is no rhythm in our speech.so talk confidently without fear,then the flow of ideas will come automatically.