Every athlete as well as some coaches who to go to the Games asked to be here before 7:3

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A. are; are
B. is; is
(答案→)C. are; is
D. is; are
解析： 考查主谓一致。some coaches 是先行词，who      to go to the Games是定语从句，定语从句的谓语动词要和先行词保持一致，所以要用复数are; as well as连接两个并列主语时，谓语动词和前一个主语保持一致， every athlete是句子主语，是单数，所以第二空用is 。选C。