In ..., we study about how things work

Computer.  graphs.  language       physics
Geography.   calculators.  events.    writing
1. In................, we study about how things work.
2. In math, we study........., equations and learn to use..........
3. In history, we study past and present .............in Viet Nam and around the world
4. We learn how to use a............in the computer science class
5. In the..........class, we study maps and learn about different countries.
6. In literature, we study authors and.....
7. In the..............class, we study English