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–Look at that girl! Is it Susan?
--No, it _______ be hers. She has gone back to her hometown.
A．mustn’tB．can’tC．needn’tD．wouldn’t
B
根據(jù)句意蘇珊回來(lái)家鄉(xiāng)不在此處，所以此事物不可能是她的，can’t表示不可能的意思，故本題選B。
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