情态动词(2)Finishthefollowingwithcan/could,may/might,will/would,shall/should,&leadin1.“___youwalkwithoutmyhelp?”,butI’’??,&?……!….…&conclusionTask1:情态动词+havedoneOnP38of《YHFA》Whatimpressyoumost?Whatpuzzleyour?,’’’’,,butperhapsI_______forher.(N1994) ,I’,’t ’t ’tcouldn’tAConclusion:过去一定做过…___________________过去不可能做过…__________________过去本该做而未做………_______________musthavedonecan’thavedoneshould/oughttohavedonemay/mighthavedoneneedn’thavedone对过去所发生的事进行推测是要用___________________________情态动词+
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