2. Fill in the questions (вставьте вопросительные реплики): a) -Yes, they are students.
 b) - We work.
 c) - Yes, he studies at the university.
 d) - They work in a hospital.
 e) - No, he is not a student, he is a doctor.
 f) - Yes, he is an engineer.
 g) - She works in a firm.
 h) - My friends are doctors.
 i) - He is an economist.
 j) - I study at the university.