问题
选择题
—Whose book is this?
—It _______ be Lucy's. Look, here is her name. [ ]
A. may
B. must
C. can't
D. need
答案
答案：B
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—Whose book is this?
—It _______ be Lucy's. Look, here is her name. [ ]
A. may
B. must
C. can't
D. need
答案：B