11.  The worset thing is that many westerners die in an early age from the heart illness.

12.  The first question, my teacher have told me it must said that " He is taller than I " But I have listened someone said:" He is taller than I ".

13.  I had a rest for fifteen minutes.After that, I washed out at about eight o'clock.

14.  Its steel ropes are so long that they can circle the earth four times in all.

15.  It has two strata , Cars run on the upper stratum and trains run on the other one.In the evening, there held a large celebration for that , including the play of the fireworks.

16.  The grand play is so wonderful that the spectators let out the surprised shout from time to time.

17.  But, with the renewal of the computer., the software developed so fast , that "486" had been unfitted for the software's development.

18.  It seemed that most of them were good at swimming.

19.  At that time, I often swam, too.

20.  That morning there will be some man from the government go there to get it.