11.  He was wearing an apron, rolling up his sleeves with his two hands covered by waste oil.

12.  While we were preparing hardly for the entrance examination, we were cheered by teachers with the freely future in university.

13.  Therefore, students study by day and night.

14.  And many students learning liberal arts are fans of Shakespeare or Xueqin Cao, and so fascinated that they can hardly avoid talking about those tragedies written by them, which may be understood as complaining and nagging.

15.  He was admitted by Department of Chemistry in our university and got a full A for all the natural science courses in the last academic year.

16.  There are another campus-standards used by people to make incorrect judgments.

17.  Considering that I was deeply interested in English literature, I determined to recite a sonnet written by Shakespeare because I thought I could advance it with expression.

18.  As for me, I am so ashamed of my stereotype caused by over-generalizations.

19.  Sometimes cars come into the campus but all of them are in low-speed so that the birds can still be heard by the readers.

20.  They are captured by girls' vigour.