Now more and more Chinese senior studentsare applying for admissionto American universities through SAT．—_______．But taking an SAT may cost more than 10,000 yuan．

____ the rising birth rate and immigration, the declining death rate also ____ the population growth.

_______ useful information it is!

If I had had enough time, I 　　　　　　　my work.　　　

Zhang Lin was addicted to computer games during his last year in high school , otherwise he ____________a student of Beijing University .