BTGT-03: Phân biệt cặp âm /u:/, /ʊ
<figure class="table"><table><tbody><tr><td>/u:/</td><td>/ʊ/</td></tr><tr><td>Pool /pu:l</td><td>Pull /pʊl</td></tr><tr><td>Fool /fu:l</td><td>Full /fʊl</td></tr><tr><td>Luke /Lu:k</td><td>Look /lʊk</td></tr><tr><td>Stewed /stu:d</td><td>Stood /stʊd</td></tr><tr><td>Cooed /ku:d</td><td>Could /kʊd</td></tr><tr><td>Wooed /wu:d/</td><