7. Supply prepositions where necessary. 1. You should follow... the doctor's advice and take those pills... the cough. 2. . the course the discussions some problems arose. 3. He listened... the doctor's advice and it did... him a lot ... good 4. Her child throat disease. is seriously ill and I'm afraid he must be operated . 5. He was treated a 6. The new medicine cured him.. permanent headaches. 7. The X-ray was lost. It resulted. another medical check-up.