1.  The old courts were covered with sands.

2.  After it raided the old courts were always being covered with water.

3.  When the new basket-ball courts were set up, we would never feel helpless in face of a task beyond our capability.

4.  We were expecting the day's coming.

5.  This made the people who were using "486" or "386" have to change their computer into "586", or they would not use the new softwares well.

6.  With more and more termites were killed by this way, the class became quiet.

7.  We were asked to volurtary labour in order to greet sanitation exam of the whole country by Mr Zhu today.

8.  The rain was so greatly that we were stopping cleaning.

9.  But we were discovered by Mr Zhu at last.

10.  In a twinkling, My classmate's sight were centralizing at me.