Some see it as a celebration related to the turn of the seasons from winter to spring; others, however, believe that it 16 the adoption of a new calendar.
答案：(C) stems from
【句型】stem from 字詞搭配「源自於」；leads to（導致，方向相反）、brings out（帶出）、comes across（偶遇）都不合。
stem 你最熟的是名詞「莖、幹」，動詞用法比較陌生。四個選項塞進去讀起來都像句子，真正要判斷的是「方向」。
先確認 it 指什麼：it 指的是 April Fools' Day（愚人節）。空格後面 the adoption of a new calendar（新曆法的採用）是更早發生的事，下一句就說 In 1582, Pope Gregory XIII ordered a new calendar（1582 年教宗額我略十三世下令頒行新曆）。所以愚人節是後來的結果，新曆法是源頭，要填的是「源自於」，也就是 stem from。stem 當名詞是植物的莖，莖從根長出來，這個字面意象可以直接幫你記住方向：A stems from B 是 A 從 B 長出來。前半句 Some see it as a celebration related to the turn of the seasons（有些人把它看成與季節交替有關的節慶）講的也是起源，兩種說法並列，主題一致。
leads to（導致）方向剛好相反，會變成愚人節導致新曆法被採用，時間順序不合。brings out（帶出、使顯現）的受詞通常是特質或產品，例如 bring out the best in sb。comes across（偶然遇到；給人某種印象）不能接「採用」這種抽象名詞。
stem from（源自於）、result from（起因於）、derive from（源自、衍生自）、date back to（可追溯到）、lead to（導致）、bring out the best in sb（激發某人最好的一面）、come across as（給人……的印象）、the adoption of（對……的採用）。
April Fools' Day, one of the most light-hearted days of the year, has an unclear origin. Some see it as a celebration related to the turn of the seasons from winter to spring; others, however, believe that it 16 the adoption of a new calendar. Ancient cultures celebrated New Year's Day on or around April 1, which roughly coincides with the beginning of spring.
In 1582, Pope Gregory XIII ordered a new calendar, which called for New Year's Day to be celebrated on January 1. However, many people, either refusing to accept the new date or not having heard about it, 17 to celebrate New Year's Day on April 1. Other people began to make fun of these traditionalists, sending them on "fool's errands" or trying to fool them into believing something false. 18 , the practice spread throughout Europe and the rest of the world.
Nowadays, on April Fools' Day, people often 19 to create elaborate hoaxes to fool others. Newspapers, radio and TV stations, and websites have participated in the April 1 tradition of making 20 reports in order to fool their audiences. The BBC once reported that Swiss farmers were experiencing a spaghetti crop and showed scenes of people harvesting noodles from trees. Guess what? Numerous viewers were fooled.