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According to the rules of the game.each competitor wear a number. A.can B.shall

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According to the rules of the game.each competitor wear a number. A.can B.shall

According to the rules of the game,each competitor ________ wear a number.

A.can  B.shall  C.may  D.could

试题答案

B 考查情态动词。shall常用来表示按条约、法令、规章等必须履行的义务,用于第三人称,其含义相当于“必须”。