题目内容
—When should I hand in my paper?
— Your paper must _ as soon as the bell_ .
A. hand in; rings B. hand in; will ring
C. be handed in; will ring D. be handed in: rings
D
解析:被动语态与as soon as的用法。paper作主语 (为“交卷”的承受者),故要用被动语态,as soon as表示“一……就……”,从句用一般现在时代替一般将来时。故选择D。
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