Define the function of the verb “to have”: 1) He has a lot of trouble with his teeth. 2) I’m not working tomorrow, so I don’t have to get up early. 3) The students have already written a grammar test. 4) He has passed his exam in Anatomy. 5) We have lectures and seminars every day but Saturday and Sunday. 6) I have to attend lectures regularly. 7) He has to study hard to pass his exams. 8) You have to pass a test before you can get a driving licence. 9) They had the exam in Maths last year. 10) The doctor has told us about an interesting case from his practice. 11) What do you have to do every day? 12) I’ll be late for work tomorrow. I have to go to the dentist. 13) Jill starts work at 7 o’clock, so she has to get up at 6. 14) Medical students have their practical practice (placements) at various clinics and hospitals. 15) We didn’t have to wait very long for the bus.