新概念1第130课课后练习,i think she was Danish(Swedish)

题目

新概念1第130课课后练习,i think she was Danish(Swedish)
I don't think she was.She can't have been Dashin.She must have been Swedish.这个不是怪怪的吗?什么叫做那时肯定是瑞典人,那现在不是了?不能直接说She must be Swedish?英语不是又那时候是,现在不是得说法吗?那到底现在是不是瑞典人啊.
打错了点字。英语不是有“那时候是怎么样，就表示现在不是怎么样”的说法吗？那到底现在是不是瑞典人啊。

答案

这里不矛盾啊
后面的作业
前面句是 肯定句
后面是 否定句
或者看成两个的对话
A：I think she was Danish
B：I don't think she was.She can't have been Dashin.She must have been Swedish
句号后面是对前面的 猜测