Học từ vựng English Vocabulary in Use Upper-intermediate
Unit 55: Obligation, need, possibility and probability

STT	Bài học	Số câu hỏi	Audio
1	Vocabulary	1	No audio
2	Exercise - 55.1	6	No audio
3	Exercise - 55.2	1	No audio
4	Exercise - 55.3	4	No audio
5	Exercise - 55.4	5	No audio
6	Exercise - 55.5	1	No audio

Unit 54: Distances and dimensions

Unit 56: Sound and light