B.) Change the sentences into negative using the long form:
Jane is a teacher
Jane is not a teacher
2. They are from Spain.
3.
I am sad.
You are right
5.
It is his book.
6.
My mother is at work
7.
Mike and Brian are brothers
8.
Kate is tired
9.
John is her cousin.
10. We are in the classroom

just stick in the word 'not '

2. They are not from Spain.

3. I am not sad.

4. You are not right

5. It is not his book.

6. My mother is not at work

7. Mike and Brian are not brothers

8. Kate is not tired

9. John is not her cousin.

10. We are not in the classroom

the answer that is correct is the last option.