Penerangan
This is a story with a turning point: preparing a presentation → a page is missing → he stays calm → he is praised. You do not need every word, but keep the four main points and the closing lesson (准备得再充分,也要学会灵活处理问题). Minor details such as “前一天晚上都没睡好” can shrink to “他很紧张”. Reusing 不但没有……还/反而…… (not only didn't… but…) earns credit. The excellent answer adds a topic sentence, uses 先……然后……最后…… and a 把 sentence, so it flows better. You are scored on content coverage, fluency and pronunciation, not on reciting the original.