Question

Transform the sentences into the negative and the interrogative forms

he is very happy
paul and helen are our teacher
toronto is a nice city
their parentes are lovely
they are from different countries
petr an georgia are bast friends
i am very busy now
the cat is sleeping
you are very intelligent

Answer 1

a) Negative: He isn't happy.
    Interrogative: Is he very happy?
b) N: Paul and Helen aren't our teacher.
    I: Are Paul and Helen our teacher?
c) N: Toronto isn't a nice city.
    I:Is Toronto a nice city?
d) N: Their parents aren't lovely
    I: Are their parents lovely?
e) N: They aren't from different countries.
    I: Are they from different countries?
f) N: Peter and Georgia aren't best friends.
    I: Are Peter and Georgia best friends?  
g) N: I am not very busy now.
    I: Am I very busy right now?
h) N: The cat isn't sleeping.
    I: Is the cat sleeping?
i) N: You aren't very intelligent.
    I: Are you very intelligent?