Before starting the exercise for using "adjective + する", please clarify any doubts you may have about the grammatical rules by referring to your grammar guidebook or dictionary. The Instantaneous Composition Method requires you to compose sentences with the target sentence pattern(s) over and over in order to use them almost effortlessly. You should already have the necessary knowledge.
Reference
Genki II - Lesson 21: Adjective + する (*to make something "adjective")
Instantaneous Composition Exercise for Using "Adjective + する"
This is not a translation exercise. This is the Instantaneous Composition Exercise. As if a reflexive action, try to create an equivalent Japanese sentence shortly after reading an English script. Try not to think for more than three seconds.
Natural Speed with Pauses
English and Hidden Japanese Scripts
(I) made (my) room clean.
部屋をきれいにしました。
(I) regarded the present as important. (lit. I made the present important.)
プレゼントを大切にしました。
(I) made the soup sweet.
スープを甘くしました。
(I) made the test difficult.
テストを難しくしました。
Please be quiet. (lit. please make it quiet.)
静かにしてください。
Please make (it) warm.
温かくしてください。
Please make (yourself) serious.
真面目にしてください。
Please make (yourself) comfortable.
楽にしてください。
Let’s make the atmosphere better.
雰囲気をよくしましょう。
As for the color, please make it (the one you) like.
