2 Write the opposites. 1 He's reading a book. 2 I'm downloading a song. 3 They are doing their homework. 4 She is having a friend. 5 You are sitting in my seat. 6 He isn't taking a selfie.

1. He isn't reading a book.
2. I'm not downloading a song.
3. They aren't doing their homework.
4. She isn't having a friend.
5. You aren't sitting in my seat.
6. He is taking a selfie.

В отрицательной форме используется not после формы глагола to be; в утвердительной форме частица not убирается.