This book is the textbook of using when I was a high school student.
It looks so old because of too much use.
I changed my English pronounciation quality by this book.
First, I speak English such as a non-well Japanese pronounciation, but I improved that "Your speaking looks like a native speaker that hear from radio speaker." among the people.
I've never been to English school, lol.
I improved English pronunciation generally by practicing voice and listening to the pronounciation of vowel and consonant by CD.
This is my treasure of my life! I write down blog to deepen the qudlity of learning. https://profile.ameba.jp/ameba/oiwarin-44