改否定句:My father worked in a hospital

改否定句:My father worked in a hospital My father worked in a hospital.(改成否定句) 改否定回答：My father worked in a hospital（怎么做）急! My father worked in a bank in 1990改否定句 改肯定回答：My father worked in a hospital（怎么做）急! They worked in a hospital last year.(改为否定句) my father works in a hospital同义句 My father works in the bank..(改否定句) my father is a doctor 改否定句 his father works in a hospital in central guangzhou改为同义句怎么改 my father works in a bank 改成否定句 My father teaches in a high school.的否定句