If you have to study in your room, you will need to create a (1) .......... atmosphere that allows you to think. (2) ............ of dark colours, such as the black walls that (3) ............ to be so fashionable in the '70s, it's better to choose a colour that can help what's (4) ................. as 'brain activity'.
1)c 2)a 3) b 4)d kolay gelsin :)