【正确答案】 C

【答案解析】[理由] (A) no more than... 最多不超过……
[例] I have no more than one hundred dollars.
(我的钱最多不超过100元。)
(B) no less than... 至少有……
[例] The brochure contains details of no less than ninehiking routes.
(这本旅游小册子包含至少有9条的徒步旅行路线。)
(C) no later than+时间副词 最迟不超过……
[例] Please arrive at the party no later than 8 0'clock.
(最晚请在8点前抵达派对现场。)
(D) no sooner had+主语+过去分词+than+主语+动词过去式 一……就……
[例] No sooner had I seen him than I cried.
=As soon as I saw him, I cried.
(一见到他我就哭了。)
根据上述，空格后有时间副词短语Friday June 6(6月6号星期五)，故得知(C)应为正选。