Học từ vựng English Vocabulary in Use Upper-intermediate
Unit 83: Uncountable nouns

STT	Bài học	Số câu hỏi	Audio
1	Vocabulary	1	No audio
2	Exercise - 83.1	5	No audio
3	Exercise - 83.2	12	No audio
4	Exercise - 83.3	18	No audio
5	Exercise - 83.4	13	No audio
6	Exercise - 83.5	1	No audio

Unit 82: Homophones and homographs

Unit 84: Words that only occur in the plural