问题
选择题
Mary _____ be in London because I saw her in town just now.
A．mustn’t
B．isn’tableto
C．maynot
D．cannot
答案
答案：D
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Mary _____ be in London because I saw her in town just now.
A．mustn’t
B．isn’tableto
C．maynot
D．cannot
答案：D