1.  A primary school teacher did a follow-up investigation on 150 students, to find that students ranking between no. 1 and no. 5 in class didn't become people of tremendous promise, but those ranking between no. 10 and no. 20 unexpectedly performed excellently in work.

2.  I did a serious self-reflection about that mistake I made when I headed to the public bathhouse.

3.  He could do math practice for seven lasting hours, which few the Jiangsu students could do, and not to mention in Beijing fewer students put their mind in learning.

4.  "Girl, could you do me a favor? "

5.  For example, in ancient China, men usually did some jobs such as growing crops, hunting and fishing.

6.  Nevertheless, women usually did some jobs like picking up fruits, knitting and so forth.

7.  People should do what he or she really can do instead of what he or she is expected to do.

8.  Nothing could be done without persistence, let alone the English learning.

9.  On the other hand , To keep pace with the busy life , people should do something on time but lating .

10.  As we all know, he did it!