六、句型转换 (本题共5题，每小题1分，满分5分）
请根据要求改写下列句子，每空一词。
81. I think that he seems dishonest sometimes. （构成反义问句）
I think that he seems dishonest sometimes, _________ ____________ ?
82. He is foolish to say such a thing. (改为同义句)
_________ is foolish _________ him to say such a thing.
83. Many visitors come and visit Guilin because of its fantastic landscape.(改为同义句)
Many visitors come and visit Guilin ________ it ________ fantastic landscape.
84. The population of Hai’an is about a million. （对划线部分提问）
_______ _________ the population of Hai’an?
85. Twenty-four emperors used to live in the Palace Museum. （改为否定句）
Twenty-four emperors _________ _________ to live in the Palace Museum.