Học từ vựng English Vocabulary in Use Upper-intermediate
Unit 56: Sound and light

STT	Bài học	Số câu hỏi	Audio
1	Vocabulary	1	No audio
2	Exercise - 56.1	4	No audio
3	Exercise - 56.2	7	No audio
4	Exercise - 56.3	5	No audio
5	Exercise - 56.4	6	No audio
6	Exercise - 56.5	4	No audio

Unit 55: Obligation, need, possibility and probability

Unit 57: Possession and giving