51.  Crossroads friends forge powerful links, links strong enough to endure with not much more contact thanonce-a-year letters at Christmas.

52.  With the arrival of integration, the black black woman would find, paradoxically enough, that her skin color in an integrated situation was not the handicap it had been in an all-black situation.

53.  For example, Aristotle's theory that everything was made out of four elements, earth, air, fire, and water, was simple enough to qualify, but it did not make any definite predictions.

54.  Americans throw away 80 billion bottles and cans each year, enough to build more than ten stacks to the moon.

55.  A bridge wide enough and strong enough for every American to cross over to a blessed land of new promise.

56.  There is no doubt that we should be polite enough when we talk to others.

57.  However, most women believe they are "not good enough"".

58.  What's more essential, undergraduates is mature enough to make and be responsible for their action and keep a good balance between love and learning.

59.  To me, it doesn't really matter which communicative way puppies adopt as long as they'll in the end be able to employ either way well enough and succeed in future communication with different people.

60.  The two kinds of pressure working on college students today: job stress , self-induced pressure is strong enough to push students.