div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=knock-knock-knock-oh-no-a-student-shall-i-knock-knock-oh-no-a-studenthtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: KNOCK! KNOCK! KNOCK Oh no a student! shall I …probabilitycajeffimagesjsr-dr-j-mousepadpdfKNOCK! KNOCK Oh no a student! shall I do Therets only one escape thro ugh the loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentinreader034viewer20220523205f095c217e708231d4267687html5thumbnails1jpg width=140 height=200 divdiv