- 问题详情:Necessaryaction betakentoprotecttheenvironmentsothatwecanhaveabetterworld.A.can B.must C.may D.might【回答】B.can能,会;must一定,必须;may可以;might,may的过去时,表示的可能*比may小.根据toprotecttheenvironmentsothatwecanhaveabetterworld,可知为了保...
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- 问题详情:Necessaryaction_______sothatstudentscanbesafeatschools.A.canbetaken B.mustbetakenC.maybetaken D.mightbetaken【回答】B知识点:情态动词题型:选择题...
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