【题目】You ________ write the poem down. Our teacher will give us a copy soon.
A.mustn't
B.can't
C.shouldn't
D.needn't

【答案】D
【解析】考查情态动词。A. mustn't禁止，不允许；B. can't不能；C. shouldn't不应该；D. needn't不必，不需要。句意：你不需要写下这首诗，我们的老师马上会给我们复印一份。故选D。