21.  He is so honest and polite.

22.  "Who said so? "

23.  So, I decided to chat up with someone to distract my attention to the awful hot weather.

24.  So, the story of Jack give me a vivid lesson that being an eye-opener is very essential.

25.  So some students just skipped the class at the beginning for fear of "wasting time".

26.  So am I a queer one of Subei group?

27.  I used to think so until that time when I knew the girl named Qing.

28.  I felt so excited that I reached the classroom quite early.

29.  During the month, all of us tried our best, so did Qing.

30.  Every time when I recall that month I worked with Qing in, I have to admit that the power of stereotypes is so strong that it can easily influence your ideas and cover the truth.