1)take/part/different/at/recess/energetic/students/in/often/activities.
energetic students often take part in different activities at recess
2)very/brother/my/at/swimming/younger/good/at/are
my younger brother is very good at swimming
3)att the moment/those/students/physics class/experiments/in/some/are/doing
those students are doing some experiments in physics class at the moment
4)how/we/computer/to/science/learn/use/class/a/computer/in
we learn how to use a computer in science class