Aktivität

Anonymous #11511653 started the lesson entitled "邀请"

Anonymous #11511653 started the lesson entitled "课程介绍"

Anonymous #11455542 started the lesson entitled "Thực hành với các lớp trừu tượng"

Anonymous #11511653 earned the "Well begun is half done" achievement

Anonymous #11511653 started the lesson entitled "你已经升级了！"

Anonymous #11511653 advanced to Level 1

Anonymous #11511653 completed the "2 + 3 = 5" task on attempt 1

Anonymous #11511653 is making attempt 1 to complete the "2 + 3 = 5" task

Anonymous #11511653 completed the "无需注释" task on attempt 2

Anonymous #11511653 is making attempt 2 to complete the "无需注释" task

Oscar Alexander Obando Obando started the lesson entitled "Herencia. Ventaja de la herencia"

Oscar Alexander Obando Obando advanced to Level 31