（１）I am not a student.
（２）They are not Japanese.
（３）I do not know John.
（４）He does not like music.
（５）He doesn’t speak English.
（６）You aren’t busy.
（７）They don’t play the piano.
（８）She does not sing the song.
（９）He isn’t my brother.
（10）We don’t speak French.
（11）Are you a student? Yes, I am.
（12）Is she a teacher? No, she isn’t.
（13）Do you like music? Yes, I do.
（14）Does she play the piano? No, she doesn’t.
（15）Do you speak English? Yes, I do.
（16）Are they from London? Yes, they are.
（17）Does John play soccer? No, he doesn’t.
（18）Are you guys hungry? Yes, we are.