Looking at a computer screen for hours every day prevents your eyes from getting the exercise they need to maintain their --------- to distinguish (A)detail (B)ability (C)specialy (D)relationship
between colors, objects, and distances. Here are some ways to make sure your eyes get the exercise they need while in the workplace:
Make sure your computer screen displays clear, high-quality images, and place your computer monitor at eye level --------- your eyes do not (A)so (B)or (C)and (D)but
become tired from looking at the screen.
Every twenty minutes, close your eyes ---------- them rest. To exercise (A)let (B)lets (C)to let (D)letting
them, look at different objects in your office or try focusing them on a far away object.
These simple things will help you maintain the health of your eyes.