来自李锁刚的问题
【ThefirsttextbookswrittenforteachingEnglishasaforeignlanguagecameoutinthe16thcentury为什么要用written,】
ThefirsttextbookswrittenforteachingEnglishasaforeignlanguagecameoutinthe16thcentury
为什么要用written,


【ThefirsttextbookswrittenforteachingEnglishasaforeignlanguagecameoutinthe16thcentury为什么要用written,】
ThefirsttextbookswrittenforteachingEnglishasaforeignlanguagecameoutinthe16thcentury
为什么要用written,
第一本将英语作为外语教授的教科书出现在16世纪.
written是过去分词,这件事已经发生过了.