单选题 The general manager demanded that the job will be completed before the summer holidays.
【正确答案】 C
【答案解析】[解析] 本题考查虚拟语气的用法。动词demand后接名词性从句时,从句需用虚拟语气,谓语应用should+动词原形,且should可以省略。所以,答案为C