mistake 错误
make a mistake 犯错
你已经犯了一个很大的错误,你应该向他道歉.1.It doesn't m_________ if you don't understand every word2.Don't be a___________ to answer the teacher's questions3.Don't tell anyone else about it. It'sa s____________1. matter 如果你不认识每个单词，也没有关系。 2. afraidbe afraid to do 害怕做某事，不要害怕回答老师的问题。 3. secret 秘密不要告诉任何人，它是一个秘密。