804] Both the Summer and Winter Olypics every four years. [译文] 春冬两季奥运会都是每四年举行一次. A. hold B. are hold C. are held D. is held [答案及简析] C. 主谓一致问题.both-and引起的短语做主语谓语用复数,此句的主语不能发出动作故用被动语态. 查看更多

 

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