1. The students are doing the exam now.
Are the students doing the exam now?
What are the students doing now?
Are the students doing the exam or writing exercises now?
The students are doing the exam now, aren't they?
Who are doing the exams now?
2.I shall choose the profession of a doctor.
Shall I choose the profession of a doctor?
What profession shall I choose ?
Shall I choose the profession of a doctor or of a teacher?
I shall choose the profession of a doctor,shan't I?
Who shall choose the profession of a doctor?
