Luyện nghe Mastering the American Accent - (Unit 56 : Comparing th with s and z)
It’s especially difficult to pronounce the th sound correctly if the z and s are nearby. Make sure that all of the consonant sounds are clearly heard. Don’t blend them together and don’t substitute one for the other.
Title - Word Contrasts for z Versus th Kiểm tra kết quả Xem đáp án Title - Practice Sentences for th Versus s and z