"Do so" is the correct usage when "so" refers to an action."Do it" is the correct usage when "it" refers to a noun.
As "do" generally refers to actions, "do so" is more often correct than "do it".
The mind-map-strategy for RCs
1.Skim through the first paragraph.Take your eyes off the screen.
2. Ask yourself the paragraph's "purpose" .Purpose is always very, very brief.Avoid paraphrasing the details.
3. Skim through the next paragraph.Take your eyes off.Ask yourself the paragraph's "purpose".Link the purpose of the first paragraph with that of the second.
4. Keep repeating Step 3 for all the subsequent paragraphs.
On the real GMAT, every question is important.First few questions on a section are a bit more important.
Don't exhaust official material early- it's a common mistake.Save it for the last few weeks.
2 is the only even number that is prime.
Semicolons are used for joining two independent clausesAmy sings; she enjoys it. - Correct!
"Confusing-cause-with-effect"
A favorite GMAT CR fallacy.
Example: Every time I dream, I sleep.
While solving an RC, please think from the "author's point of view".
- Don't let your own opinion or general knowledge affect your thought process.
Don't leave mocks for the end- it's a common mistake.Take a mock every week.
Range:The difference between the greatest and smallest elements in a set.