Học từ vựng English Vocabulary in Use Upper-intermediate
Unit 23: Physical geography

STT	Bài học	Số câu hỏi	Audio
1	Vocabulary	1	No audio
2	Exercise - 23.1	7	No audio
3	Exercise - 23.2	1	No audio
4	Exercise - 23.3	3	No audio
5	Exercise - 23.4	17	No audio
6	Exercise - 23.5	11	No audio
7	Exercise - 23.6	1	No audio

Unit 22: Food

Unit 24: Environmental problems