Перевести предложения на поставив в форме герундия

1. Smoking is harmful at any age.

2. Swimming is very good for your health.

3. That doctor started working at our hospital a year ago.

4. I prefer to be treated by this dentist.

5. He stopped taking medication after recovery.

6. The nurse looked carefully at the sleeping child.

7. Before leaving, the doctor measured my blood pressure.