11.  So I can put my two-day weekend to good use.

12.  Because the new while board is in great use for the teacher .

13.  After the whiteboard was use , the air became cleaner than before, but after used some times , the white board becomes dirty.And the white board is hard to be dry.

14.  every subject made full use of all the time to give classes and reveiv .

15.  It is no use regretting what has been done now.

16.  uses , cars, bicks and many people go up and down the street.

17.  We can make good use of our knowleges in the socity .

18.  To learn it well, we must practise and practise, we get up early every morning and read English loudly for about half an hour, we try our best to speak English in English lessons , we make use of every chance to practise oral English with foreigners .

19.  "Practice Makes Perfect" has a wide use in our life.

20.  So perfect is not only practice but also use brain .