91.  Still, there were giggling on and off from nowhere.

92.  This class seemed to be a boring lecture on calculus that only a few people were actually listening.

93.  The professor turned his back and quickly wrote a series of equations and complex symbols on the blackboard.

94.  Students buried their heads, doodling on their notebook.

95.  Our group mission was to investigate the site distribution of the school bus in the Xianlin campus, in order to give some useful suggestions on the sites reset.

96.  There are also many other stereotypes on campus and it is quite easy for you to be confused.

97.  Branches cast some interesting shadow on my shoes.

98.  She talked something happily on her mobile phone.

99.  She was in a perfect shape which turned me on.

100.  Last year, I heard that the sixth dormitory on Xianlin's campus is different from other dormitories.