Question

This is my friend 改为一般疑问句

Answer 1

This is my friend 改为一般疑问句

Is this your friend？

that is my friend?改为一般疑问句

Is that your friend?
如果帮到你，请记得采纳，O(∩_∩)O谢谢

linda is my friend 改为一般疑问句

Is Linda your friend?

This is my new friend(改为一般疑问句）

Is this your new friends ?

He is my friend .改为一般疑问句

Is he your friend ?

They were my friend改为一般疑问句

一般疑问句
Were they your friend?

Jenny is my friend. 改为一般疑问句

主系表结构，只要把系词 挪到最前面就成问句：
Is Jenny my friend ？

Alice is my friend.改为一般疑问句

is Alice your friend?

his grandfather is my friend (改为一般疑问句)

你好！
Is his grandfather your friend?
祝你学习进步O(∩_∩)O哈！

She is my best friend改为一般疑问句

Is she your best friend?
为你解答，如有帮助请采纳，
如对本题有疑问可追问，Good luck!