Divide the sentences into three groups.

• Группы
  • is
  • are
  • am
• Варианты
  • She ... going to the park.
  • Masha ... a girl.
  • He ... my brother.
  • Tom ... doing his homework.
  • They ... swimming in the pool.
  • Boys ... running now.
  • Sarah and Bill ... reading interesting books.
  • I ... watching TV.