Ответ:

3) aren't

4) isn't

5) isn't

6) isn't

7) aren't

8) ain't

9) aren't

10) isn't

Правила:

Сокращения: Ain't - Am not; Aren't - Are not; Isn't - Is not.

I + am not (ain't)

You, we, they + are not (aren't)

He, she, it + is not (isn't)

You, we, they - aren't/are

She, he, it - isn't/is

I - am not/am

3. No, we aren't late.

4. No, Dan isn't English.

5. No, Tokyo isn't in China.

6. No, he isn't American.

7. No, you aren't in my class.

8 No, I'm not Brazilian.

9. No, they aren't German.

10 No, she  isn't from Madrid.