(单选题) The author.s major conclusion about the function of mistakes in foreign language learning is that_____ .(本题2.0分)
A、 mistakes do not interfere with communication
B、 learners are often very afraid of making mistakes
C、 mistakes are not important in the process of learning a language
D、 making mistakes can help the learner discover the rules of the language
出自:桂林理工大学大学英语4