English trails student`s book : stydent´s book & workbook 4. /
H: O. Mitchell.
- Estados Unidos de America: Copyright MM Publications, 2018.
- 127 páginas : ilustraciones ; 27 centímetros.
Incluye índice.
Today and tomorrow - Life in the city - Modern life - Feeling good - What the future holds - A fresh start - Public services - Human nature - Project.