If an individual tends to take two steps forward, and then one step back, how many steps will he have advanced after having made a total of 20 steps (including both forward and backward)?
Commentary on the last quiz:
You should learn at least one new word every day.
You should look up words which you do not know, instead of defining them "in context".
When you learn a new word, try to find several synonyms for it.
When you learn a new word, try to find several antonyms for it.
When you learn a new word, be certain to use it in at least five sentences that day.