Question

This is my friends 这个句子怎么改成否定句和疑问句（要有回答）？

Answer 1

　　楼主的这个句子有误，正确表达应该是：This is my friend.

1. 否定句：This isn't my friend.

   含be动词的否定句是在be动词的具体形式后加not。又如：

   I am a student.---I am not a student.

   They are at school. ---They aren't at school.

2. 一般疑问句：Is this your friend?

   1) 含be动词的一般疑问句是将be动词的具体形式提前到句首。又如：

   Tom is in red.---Is Tom in red?

   His parents are teachers.---Are his parents teachers?

   2) 陈述句中的第一人称的代词，在疑问句中要改成对应的第二人称的代词。又如：

   I am a student.---Are you a student?

   It is mine.---Is it yours?

Answer 2

参考吧~~
否定句:This isn't my friends.
疑问句:Is this your friends?

Answer 3

初中难度的问题。
This is not my friend. 否定句
Is this my (your) friend? 疑问句
Isn't this my (your) friend 否定疑问句

Answer 4

This is not my friends?
Is this your friends?

Answer 5

解答:
This is not my friend.
Is this your friend?