36.
When the professor fell off the stool, the students could not avoid to laugh.

37.
His trousers are three sizes large.

38.
They appointed him as a manager as he is efficient.

39.
Having had in the Foreign Service for a long time, Mr. Verma has met many prominent personalities.

40.
No sooner he reached home than all the villagers gathered at his home to listen to his story.