Ex 15.
1. Having left the key on the chair, she came back to take it.
2. The youngest daughter of Mr.Baker, Mary has jusst received the rewards.
3. Road which is bumpy cause accident.
4. The person who sits behind you in the class looks like you.
5. Noticing that the door was opened, I decided to come in.
6. Panama, which I have never gone through is the longest channel.
7. The boy broke the rules of the school was punished.