<b> NXB</b> : Express Publishing, 1st edition (April 27, 2018)<b> Tác giả</b> : Dooley Jenny , Evans Virginia Link Download: On Screen C1 Student's Book  (pdf) On Screen C1 Teacher's Book  (pdf) On Screen C1 Workbook and Grammar Book  (pdf) On Screen C1_SB_Audio  (mp3) On Screen C1_WB_Audio  (mp3)