21.  In last semester, a professor who taught me Competitive Intelligence told us a particularly astonishing story which happened in an interview of a famous corporation's recruitment.

22.  Is he an American?

23.  I'm not an Englishman.

24.  One was to bring down the fever, another a purgative, the third to overcome an acid condition.

25.  The germs of influenza can only exist in an acid condition, he explained.

26.  I sat down an opened the Pirate book and commenced to read, but I could see he was not following, so I stopped.

27.  Generally speaking, he was an ordinary boy with nothing to talk about.

28.  Sometimes, we even expected him to raise up hands to work out the question written on the blackboard, or to point out an ignored mistake made by the teacher.

29.  All of us suddenly realized, students who sat in the first row were usually top students, but he was an exception.

30.  After a while, the girl carried an orange backpack back and panted heavily.