1.  He dressed up as if he was going to attend a beach party but not for an opening ceremony.

2.  That was my first time to attend a seminar.

3.  They were focused to do endless homework, attend class seven days a week, do home once a month.

4.  As you see it's common in my campus to see students hurry to attend lessons.

5.  He dressed up as if he was going to attend a beach party but not for a formal opening ceremony.

6.  He dressed up as if he was going to attend a beach party but not for a formal opening ceremony.

7.  He dressed up as if he was going to attend a beach party but not for a formal opening ceremony.

8.  He dressed up as if he was going to attend a beach party but not for a formal opening ceremony.

9.  One year ago, we were both freshmen here in Nanjing University and both of us had attended the Students' Union.

10.  Nowadays, after attending the university, students become more and more silent.