Question 1153. a sales clerk at a checkout counter scanning a tag on an item rather than keying it into the system, is using ........................ .
Question 1157. if you open a menu and then decide you don't want to select an option after all, click the menu title again or press the ........................ key to close the menu.
Question 1160. if you open a menu and then decide you don't want to select an option after all, click the menu title again or press the ........................ key to close the menu.
