外研版（一起）四年级英语下册课件is---am---are---have---waswaswerehadhelp---eat---see---buy---helpedatesawboughtHeatesomeice-creams.Hedidn’teathamburgers.×√Hesawapanda.Hedidn’tseeamonkey.√×Hewenttothezoo.Hedidn’tgotothepark.√×She----------tosing.She-----------------todance.learntdidn’tlearn√×She------------football.She---------------thedrums.playeddind’tplayDidshefly?Yes,shedid.Didthemonkeycry?No,hedidn’t.Didthegirldance?No,shedidn’t.Didheeat?Yes,hedid.Didtheboyfall?Yes,hedid.
