单选题 It is quite ______ that he will change his mind.
A. sure B. right C. exact D. certain

【正确答案】 D
【答案解析】[解析] 本题考查词义辨析。sure经常用于“I am sure that+从句”结构中。但在it作形式主语、that引导主语从句时,主句中表语只能用certain,不能用sure,故选D。