— Listen! Is Rose singing in the next room? — No. It ______ be Rose. She has gone to Shanghai. [ ]A.
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题目简介
— Listen! Is Rose singing in the next room? — No. It ______ be Rose. She has gone to Shanghai. [ ]A.
题目详情
— No. It ______ be Rose. She has gone to Shanghai.
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B. can't
C mustn't
D. needn't
答案