Question

【题目】--When should we hand in my paper?

--Your paper must ___as soon as the bell ___

A. be handed in, rings B. be handed in, will ring

C. hand in ,rings D. hand in, will ring

Answer 1

【答案】A

【解析】

句意：——我们什么时候交试卷？——铃声一响你就必须交。根据Your paper和hand in是被动关系，排除C/D；根据as soon as引导的时间状语从句用一般现在时态代替一般将来时态；故选A