1.I know the girl （改否定句)

题目

1.I know the girl （改否定句)
2.The key is on the bed (改否定句)
3.I'm a girl (改否定句)
4.Tom's brother isn't here (改肯定句）

答案

1.I don't know the girl.
2.The key isn't on the bed.( isn't = is not)
3.I am not a girl.
= I'm not a girl.
4.Tom's brother is here.