1.  a good memory is a great help, but it is not enough only to memerize rules from a grammar book.

2.  of we are satisfied with a few rules we have memorized, we are to really learning the language."

3.  Some struck them by hand , some by book , even some by rule.

4.  I think we should change the rule for education.

5.  So it is necessary to study each other and change our old rules for education.

6.  Maybe it knows the rules, too".

7.  Since the cadres made the same mistake continuously, it is not strange that ordinary students wouldn't obey the rule.

8.  In a word, the saying of "practice makes perfect" is our rule of doing any things.

9.  And when we are doing we will find many questions are so easy, and we also can find the rules in these questions.

10.  And another example, bear is a very foolish animal, but during many times practice, it can make magic, this is the rule "practice makes perfect" .