问题
选择题
—Who's singing in the next room?
—It _____ be her. She has gone to New York. [ ]
A. can't
B. must
C. shouldn't
D. can
答案
答案：A
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—Who's singing in the next room?
—It _____ be her. She has gone to New York. [ ]
A. can't
B. must
C. shouldn't
D. can
答案：A