2. Вставьте глагол to be в Present Tense: a) I

a) I am a worker. Я рабочий.

b) He is not a teacher, he is a doctor. Он не учитель, он доктор.

c) My sister is at home. Моя сестра дома.

d) We are not at school, we are at the institute. Мы не в школе, мы в институте.

e) Are you an engineer? Yes, I am. Вы инженер? - Да.

Past Indefinite.

a) I was a worker. b) He was not a teacher, he was a doctor. c) My sister was at home. d) We were not at school, we were at the institute. e) Were you an engineer? Yes, I was.