Say if the words in italics are Gerunds or Participles I:
a) Gerund; b) Participle I.
1. The boy throwing stones into the pond is my brother.
2. Leaving her son alone the mother told him to behave himself.
3. Let nothing prevent you from doing what you should.
4. Why do you keep asking me questions? Can't you leave me alone?
5. She looked up and said hello to me, and then went on reading her newspaper.
6. The baby began crying in the middle of the night.
7. Having run a long distance the sportsman was tired.
8. Being left alone he went on with his work.
9. I am looking forward to Father returning home.
10. My mother objects to my playing with cats and dogs.
11. She hated the idea of being interrupted.
12. Having asked a question the teacher was waiting for an answer.
13. During the lesson he sits thinking about something else.
14. Having arrived at the stadium he found that the game was already over.