English
Vietnamese
Gb
French
Vietnamese
Gb
Deu
Beginner Level
Advanced Level
Oxford Topics
Content
make a mistake
☊
bé cái nhầm
☊
make a mistake
☊
sơ sẩy
☊
Vie
Eng
Eng
Top
Subtopic
make a mistake ☊ 
bé cái nhầm ☊ make a mistake ☊ sơ sẩy ☊