2、bbish?Yes,sure/Noproblem/certainly.2.AbilityAims:1)Studentsshouldbeabletouse“could”incorrectsituationandknowhowtoanswerit,【Teachingimportantpoints】1.Talkaboutthephrasesofdoingchores2.Learnthewaysofusing“could”【Teachingdifficultpoints】 Could for polite requests【Teachingproc