1.  When you require us .

2.  She requires us reading loud in the morning, listening carefully in the class, going over jour lesson and doing our home work in the evening every day and requires us not watching TV .

3.  We must know what kinds of man that the society is store and required , so we can go into the socity without difficult if have mastered the technologe that the socity require .

4.  People usually say "Practice makes perfect" when they require you to do something once more, now, how to understand "Practice makes perfect" ?

5.  It require you to do things all the time, don't break .

6.  For example, studing maths, it require lots of pratise .

7.  a highly appreciated quality requires complete absorption in you study and taking us notice of anything else .

8.  Now day , all of students of university are required to get to know the world outside the campus.

9.  That requires to us to know the world and fit with the world.

10.  With the development of world's population, more and more fresh water is required to meet people's demand.