一道SAT语法when recipes for iced tea appeared in a few late-nine
一道SAT语法 when recipes for iced tea appeared in a few late-nineteenth-centry cookbooks,the drink did not become popular untill the 1904 world's fair .为什么when是错的?
因为when引导的是时间状语从句,表示的是主句动作发生的时间,分析此句,when recipes for iced tea appeared in a few late-nineteenth-centry cookbooks,并不表示主句动作become popular 的时间,所以就不合适用when.