Question

passe as frases para forma interrogativa e negativa:
1- cindy is my best friend. 2-peter and kate are classmates. 3-johnny is my brother. 4-you are a good student. 5-they are in the classroom. 6-it is an apple. 7-i be her theacher. 8-il are a book bag. 9-you are a doctor. me ajudem quem puder

Answer 1

1-Is Cindy your best friend? 
No, she isn't ( is not ) my best friend

2- Are peter and Kate classmates?
No, they aren't classmates.

3-Is Jhonnny your brother?
No, he isn't my brother.

4- Are you a good student?
No, I am not a good student

5- Are they is the classroom?
No, they aren't is the clasroom.

6-Is it a apple? 
No, it isn't a apple.

7-

8- 

9-are you a doctor?
No, I am not a doctor.

Answer 2

Olá ;)
1) Is Cindy my best friend ?
Cindy isn't my best friend
2) Are Peter and Kate classmates ?
Peter and Kate aren't classmates
3) Is Johnny my brother ?
Johnny isn't my brother
4)Are you a good student ?
You aren't a good student
5)Are they in the classroom ?
They aren't in the classroom
6) Is it an apple ?
It isn't an apple
9)Are you a doctor ?
You aren't a doctor
a 7 e a 8 estao confusas , mas espero ter ajudado, abraços