31.  There May be other reasons.

32.  As time passing , they May obtain more.

33.  the reason May be here.

34.  These May be the reasons why the great changes in the developing countries .

35.  You May ask what's the reason of this change ?

36.  Because you do it more times, you May find a better way to complete it, or you May do it more quicklier than before.

37.  As a new word, we write it a time , then we May not remember it .

38.  When we do it for two or three times, we May know it a lot.

39.  We May have no sense of a new job or new course at the first.

40.  When you touch new things, you May have difficulty in dealing with them.