问题
选择题
—I saw Helen in the library this morning.
—No, it ______ her. She moved to France last week. [ ]
A. can't be
B. can be
C. mustn't be
答案
答案：A
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—I saw Helen in the library this morning.
—No, it ______ her. She moved to France last week. [ ]
A. can't be
B. can be
C. mustn't be
答案：A