题目内容
11．-Look at the girl crying in the corner．Is she your younger sister？-It be her．She was taken to my grandparents'home last week．（ ）
| A． | mustn't | B． | can't | C． | may not |
分析 --看看正在角落里哭的那个小女孩．她是你的小妹妹吗？
--不可能是她．上周她被带去我爷爷奶奶家了．
解答 答案：B．mustn't禁止；can't不可能；may not不可以．根据She was taken to my grandparents'home last week，可知上周她被带去我爷爷奶奶家了，所以不可能是她．can't不可能．故选：B．
点评 本题考查了情态动词的用法．解答时注意区分辨别句意以及所给选项的意思．
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