The book is a book that unlock3 colorful suits which teaching in listening and speaking. Inside, there are books, video, script, see viewing with video, allowing us to know whether this word is pronounced and can learn to pronounce it correctly. There are also books and within the training intended for self improvement online class. There are many training and production needs, can check the answer, which is a good choice for people who want to practise their English thaksa.
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