The author.s major conclusion about the function of mistakes in foreign language learning is that ______.
   A:mistakes are not important in the process of learning a language
   B:learners are often very afraid of making mistakes
   C:making mistakes can help the learner discover the rules of the language
   D:native speakers often do not tell foreign language learners about their mistakes

出自:河南科技大学大学英语3(专升本)