将下列句子从原句转为YES|NO问句(一般疑问句) 肯定句和否定句

问题描述:

将下列句子从原句转为YES|NO问句(一般疑问句) 肯定句和否定句
1、He is a student 2、They are in China.
3、I have a toy 4、My mom has long hair

1 一般疑问句:Is he a student?
否定句:He isn't a student.
2 一般疑问句:Are they in China?
否定句:They aren't in China.
3 一般疑问句:Do you have a toy?
否定句:I don't have a toy.
4 一般疑问句:Does my mom have long hair?
否定句:My mom doesn't have long hair.肯定句呢?你给的句子不就是肯定句么。。。