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( ) .Look Mary is over there.–That____ be her.She is in Amer

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( ) .Look Mary is over there.–That____ be her.She is in America now A.mustn't
( ) .Look Mary is over there.–That____ be her.She is in America now
A.mustn't B.can't C.needn't D.must
( ) .Look Mary is over there.–That____ be her.She is in Amer
B,can't be表示否定推测,肯定推测是must be,固定用法.由后面说她现在在美国可知她不在这,否定推测