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In China's countryside, villagers often have the same family name, but ________ not be closely related.
A.needB.shall
C.mustD.may
D
考查情态动词。根据句意选择D项,may意为“可能”,常常用于让步状语从句中。句意:在中国的农村,村民们常常会姓同—个姓,但是可能不是近亲,need“需要”;shall用于表示命令,威胁,警告,允诺,征求意见看法;must用于表示推测,意为“想必,一定”,也可以意为“非得,偏偏”,还可以用于表示劝谏,表示说话者主观上认为“应该,必须”做某事。
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