41.  I'm going to make a good use of the time to do something.

42.  I, as a college student usually take good use of the holiday to learn about the society.

43.  We should make good use of our two-day weekends.

44.  In order to keep up with the development of the society we should make good use of our college life.

45.  A student should make good use of his time according to his own activity.

46.  If we make good use of the advertisement we'll develop our country's economy as we hope.

47.  Some people wast time because they can't make good use of their time.

48.  " I must make good use of the limited time to improve my English.

49.  Every student hope to be a top student so we ought to make good use of time study So too much activities inevitably take up lots of time.

50.  We should take good use of the good effects of sports.