It' an english map?(改一般/否定/肯定）

我来答~
题目问题：
一般：Is it an English map?
否定：It isn't an English map.
肯定：It is an English map.
1、一般：Is that her computer?
否定：That isn't her computer.
2、一般：Is this his ruler?
肯定：This is his ruler.
3、一般：Is he a new student?
肯定：He is a new student.
4、提问：What’s this?或者是 How do you spell case?
（第四个你问的有些含糊,但是前三个我非常肯定!）
我英语还算可以,
若觉得不错可以选我啊~常常帮忙吧、