You have to complete the lessons in the first level before you can unlock the next one.Đoạn văn42/51Listen to a presentation about an application to learn languages. Decide if the following statements are TRUE (T) or FALSE (F). You have to complete the lessons in the first level before you can unlock the next one.Nhập câu trả lời ở đây0/3000 ký tựGiải thíchTrue