Time flies as(as改为like) an arrow.I'm already in the second half of senior grade 3 before I realized(realized改为realize) it.It is only a little more than three months before I graduate(graduate加from) middle school.At the（去掉the）present,I'm busy reviewing my lessons in order to take the college entrance examination（examination改为examinations）.I hope to go to Beijing University,that（that改为which） is one of the best universities not only in China but also in the world.I'll try my best to turn my dream to（to改为into） reality.Most of my classmates are also studying very hard to realize our（our改为their）wishes.I do believe everyone will be able to enter a very good university and（and改为or）college.