1>Monday Tuesday Wednesday Thursday Friday Saturday Sunday(1-7)
2.one-first two-secdon three-third four-fourth five-fifth six-sixth seven--th eight--h nine-ninth ten-tenth eleven--th twelve--twelfth (thirteen fourteen fifteen sixteen seventeen eighteen nineteen 都是直接加th）twenty-twentieth twenty-one————twenty-first twenty-two----twenty-second twenty-three------twenty-third twenty-four-----twenty-fourth twenty-five----twenty-fifth