2、tendedD.shouldn’thaveattended3)Jack____yet,otherwisehewouldhavetelephonedme.(上海’97) A.mustn’thavearrivedB.shouldn’thavearrived C.can’thavearrivedD.neednothavearrived4)Iwasreallyanxiousaboutyou.You_____homewithoutaword.(NMET2001) A.mustn’tleaveB.shouldn’thaveleft C