How to do this. Work through one task at a time. Choose an answer for every question, then press Check this task — you'll see what was right and, more importantly, why.
Read the explanations even when you were right. Several questions have two answers that look defensible; the explanation is where the real learning is. Your answers are saved in this browser, so you can stop halfway and come back.
Submitted
Source: lesson notes, Rivals — Lessons 1 & 2