Поставить глагол to be в правильной форме 1) they....at home now....they at home now 2)he..a doctor

Нуждаюсь в подсказке по решению задачи 9 класса: - поставить глагол to be в правильной форме 1) they....at home now....they at home now 2)he..a doctor...he a doctor? 3)they..not students .they.. ... ... your teachers 4)he ...twenty 5)we...in london now 6)my friends ....students 7)the desks....old 8)the film....new 9)she...a secretary 10)george and john ... ... ... engineers

 

[Денис]

1) they are at home now. Are they at home now? 2)He is a doctor. is he a doctor? 3)they are not students. They are your teachers 4)He is twenty 5)we are in london now 6)my friends are students 7)the desks are old 9)she is a secretary 10)george and john are not the engineers