How do complete this one course

Question

tell about something

Answer 1

https://www.sololearn.com/faq/#q1

//choose a language

Answer 2

1 pick a course
2 read the material
3 do the exercises and read the comments along the way
--- also you can ask questions along the way there
4 take the quiz and review the material
5 earn a tutorial certificate
6 learn more

Answer 3

Which one?

Answer 4

What