1.   All the juniors should be present at 2 p. m. this Tuesday afternoon.

2.   They are usually too busy to be present at each class.

3.   Firstly, the teacher in univerisity are very busy, so they have no time to focus on the problem if all the students are present at the class.

4.   Two simple questions are present at the beginning.

5.   she also is present at the assembly hall.

6.   Many schools have taken actions to ensure students to be present at the classes on time.

7.   It can also help us to communicate with others instead of being present at them, so it can really save our time.

8.   Lots of famous scientists from some fields concerning science will be present at the conference.

9.   Worse still, they may hardly be present at class.

10.   We should be present at more lectures which are related to our major, because it can be seemed as an important part of mastering our major.