Pronunciation activity one, listen and repeat, add one more word to each group. Oh. oh. no. no. Home. home. H hot. Heart . clock . clock. Come . come. done . done. Oh oh. coat . coat. roast . roast不。food . food . score . school . two . two。Look. look. look. book . out out . about . trousers. trousers. oh. On . no. No. I. Down. down. Brown. Brown.