Học từ vựng English Vocabulary in Use Elementary
Unit 21: In a hotel - single room, key, luggage

STT	Bài học	Số câu hỏi	Audio
1	Vocabulary	1	No audio
2	Exercise - 21.1	7	No audio
3	Exercise - 21.2	8	No audio
4	Exercise - 21.3	16	No audio
5	Exercise - 21.4	1	No audio
6	Exercise - 21.5	1	No audio

Unit 20: Online shopping - reviews, basket, delivery

Unit 22: Eating out - café, menu, fish and chips