Luyện nghe nói - Tree Or Three
Unit 32: /d/ door

STT	Tên task	Số câu hỏi	Audio
1	Exercise - 1.1	1	✔
2	Exercise - 1.2	1	✔
3	Exercise - 2	1	✔
4	Exercise - 3	4	✔
5	Exercise - 4	4	✔
6	Exercise - 5	1	✔
7	Exercise - (6-7)	6	✔
8	Exercise - 8	12	✔

Unit 31: /t/ tin

Unit 33: /aʊ/ house