21.   Zaborski closed the file and pressed a button under his desk.

22.   Drago pressed a button and the door closed.

23.   The only flaw is the slightly slow response times when you press the buttons.

24.   The electronic hardware associated with the digitizer can determine the position of the pointer on the table whenever a button is pressed.

25.   Each map feature is digitized placing the pointer at the location whose coordinates are required and pressing a button.

26.   An intelligent controller can track the position of the pen and record its location either at a fixed rate or whenever the operator presses a button.

27.   The user specifies the option required by pointing the mouse to the icon and pressing a button on the mouse to activate that process.

28.   Without you indifferent colonels would shrug their shoulders and press the button.

29.   Pete ran ahead and opened the big glass doors as he usually did and Mum lifted him up to press the button for the lift.

30.   She fumbled for change and pressed the button for black coffee.