问题描述：
Lisa ______be at home now.I just saw her off at the airport
A.must
B.mustn't
C.can
D.can't
请帮忙选项出正确答案,并翻译整句话,
A.must
B.mustn't
C.can
D.can't
请帮忙选项出正确答案,并翻译整句话,
问题解答：
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