—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
答案
正确答案：D
知识点：被动语态
根据语境，一旦铃声敲响，你的卷子必须上交，所以第一空用被动语态，第二空用主动语态。此句是一个由as soon as引导的时间状语从句，需遵循主将从现原则，所以as soon as后引导的从句用一般现在时。故完整的表达为：Your paper must be handed in as soon as the bell rings。
略
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