11.  We listened to lectures in class carefully and focused on cooperation rather than study desperately after class.

12.  After a sequence assesses, examinations and oral quizzes, the final result was sent by the jury to the examiners.

13.  After a while he said to me, "You don't have to stay in here with me, Papa, if it bothers you. "

14.  This was the first day I entered college, after completing a lot of registration work, my parents and I were ready to move my luggage to my dormitory.

15.  After a while, the girl carried an orange backpack back and panted heavily.

16.  After that, I did not care too much about her until I was shocked by all the stuff she stacked on the desk.

17.  After long-term contact, I found Jack was a warm-heart person but was a little shy.

18.  Before daybreak, a new study day begins; after 12 o'clock, the desk lamps are still glowing with a faint light.

19.  After I entered the bathroom, I noticed four big black and white chinese characters-Men Stop.

20.  After these six year's accommodation in school, I learned that fewer people live in one room, more convenient the life will be.