问题描述：
汉译英：它们肯定不他的
A,they mustn't be hers.
B,they can't be hers.
C,they needn't be hers.
D,they couldn't be hers.
A,they mustn't be hers.
B,they can't be hers.
C,they needn't be hers.
D,they couldn't be hers.
问题解答：
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