精选优质文档-倾情为你奉上 (1) People often ask which is the most difficult language to learn, and it is not easy to answer because there are many factors to take into consideration. Firstly, in a first language the differences are (66) as people learn their mother tongue naturally, so the question of how hard a language is to learn is only (67 ) when learning a second language. A native speaker of Spanish, (68) , will find Portuguese much easier to le