51.
To avoid future complications, the boundary between neighbours should be properly defined.

52.
Miss Margaret is a genteel lady.

53.
The criterion of judgement would be fixed soon.

54.
If you waver at the last minute, you shall face failure.

55.
They all shunned him because he was a lecherous man always looking for an oppurtunity to cheat others.

56.
He was adjudged as the best orator of the college.

57.
The fetid mound of waste near the town was a major cause of the epidemic.

58.
How beautiful! This is really something to ponder over.

59.
A rupture in the relationship of the two brothers is quite apparent.

60.
Slangs in a language are usually ephemeral in nature.