Oneday,inanEnglishclass,thestudentsaredoingtheirlessons...
问题详情：Oneday,inanEnglishclass,thestudentsaredoingtheirlessons.Theirteacher,ayoungwoman,isveryhappy.Shesingssomenicesongswiththemandthenshegoestotheblackboardandwrites“SMILES”onit.“Thisisthelonges...