Books to be colorful Unlock3 but are expensive and have used the book in less time teaching makes no sense with the price of the book worthwhile. In order to use the book to have been highly effective. Must be used in conjunction with technology, such as computers, the Internet, which all students don't have everyone of these technologies. Thus, a student may be given the opportunity and the knowledge is not created equal. In most of the online class, students need to have a computer or Smartphone and Internet members. In order to be able to access the practice. Cause difficulties for students who do not have these technologies.
การแปล กรุณารอสักครู่..
