2013年自考《英语（一）》每日一练（1.22）
单选题
1.Mary ______ be in Paris，for I saw her in the town only a few minutes ago.
A.mustn't
B.can't
C.shouldn't
D.may not
正确答案：B
答案解析：由题意可知被猜测的时间是现在，有客观事实根据I saw her in the town a few minutes ago，猜测语气要求更强，所以正确选项是B（can't是must的否定式）。
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