Học từ vựng English Vocabulary in Use Pre-Intermediate
Unit 31: Classroom language

STT	Bài học	Số câu hỏi	Audio
1	Vocabulary	1	No audio
2	Exercise - 31.1	8	No audio
3	Exercise - 31.2	7	No audio
4	Exercise - 31.3	3	No audio
5	Exercise - 31.4	6	No audio
6	Exercise - 31.5	1	No audio

Unit 30: Notices and warnings

Unit 32: School education