21.  I am not sure how many trees there are but I am sure that the green can be seen from everywhere.

22.  What's more, it is said that a great many students in their school are admitted to Peking University and Tsinghua University!

23.  Many girls have had boyfriends, and some of them are with the seniors.

24.  There are many this year's graduates applying for the vacancy of Executive Manager.

25.  Stereotypes are beliefs about people based on their membership in a particular group which based on region, gender, ethnicity and many other reasons.

26.  You know, like how many kilometers we make when we do seventy miles in the car?

27.  But the more people I contact , the more invalid I find this method is.

28.  Many times, these fixed modes are not always right in reality.

29.  To our surprise, he was good at lecturing for he used many funny examples.

30.  It was obvious that he'd lose more students next time.