The responsibility （职责） of students is to study. But studying requires （要求） the right way,

The responsibility （职责） of students is to study. But studying requires （要求） the right way,   1 The following are the ways of studying.
  2  Because in the morning, the air is fresh and the mind is Clear. For that reason we can get good results.
  3 If we have not known a text well, we must read it again. We should not read the next one till we have learned the first one well.
When we are studying, we must put our heart into the book,   4 
We must always ask Why . If something is not well understood, write it down and ask our teachers, parents or friends.   5  
Though there are many ways of studying, the above-mentioned will be quite enough if we can keep them in mind and do so.
A. or we can get nohting from the book that we are reading.
B. When shall we study?
C. In any possible way, we must know it pletely.
D. or we will waste time and money.
E. Nothing is impossible in the world.
F. In studying we must have patience （耐心）.
G. The best time for reading is in the morning.