1 question. Can you please help to understand the use of adverb in this sentence structure and which one is correct!? Open the brackets: 1. A turtle moves.... (slow) than a rabbit. Which one is correct "more slowly" or "slower "?
A: A rabbit that is not moving, does not move faster than a turtle that is moving. I'm a fan of "ly" when adverbs are used, but have read that it is not in current usage. In your example, either "more slowly" or "slower" are good choices.
2 question. Why do we use anybody instead of everyone in this sentence? As I know anyone/anybody generally are used in negative sentences and questions.
Anybody can do this. It's so easy!
A: It is not true that "anybody" can do, (whatever is being suggested), no matter how "easy" an author claims it to be. But, in my experience, anyone/anybody are not generally used in negative sentences and questions.
The difference between "anybody" and "anyone" - I would avoid both. Increasingly, there is a false globalization of assumptions, as when media hosts state, "We all use apps." No. "we" do not. I would also avoid exclamation marks.
Make the instructions complete and straightforward. "Easy" is a word that might be associated with the subject, if, in fact, you believe that most fully-abled people would find it so.