Complete the gap in each sentence with the correct form of the verb in brackets. 1 The Help facility enables users (get) advice on most problems. 2 Adding more memory lets your computer (work) faster. 3 Windows allows you (display) two different folders at the same time. 4 The Shift key allows you (type) in upper case. 5 The MouseKeys feature enables you (use) the numeric keypad to move the mouse pointer. 6 ALT + TAB allows you (switch) between programs. 7 The StickyKeys feature helps disabled people (operate) two keys simultaneously. 8 ALT + PRINT SCREEN lets you (copy) an image of an active window to the Clipboard.