Học từ vựng English Vocabulary in Use Upper-intermediate
Unit 51: Number, quantity, degree and intensity

STT	Bài học	Số câu hỏi	Audio
1	Vocabulary	1	No audio
2	Exercise - 51.1	7	No audio
3	Exercise - 51.2	4	No audio
4	Exercise - 51.3	5	No audio
5	Exercise - 51.4	1	No audio
6	Exercise - 51.5	1	No audio

Unit 50: Commenting on problematic situations

Unit 52: Numbers and shapes