what's the difference with "quick" and "quickly"?
I have done a choice question. Your reading was _______(quick, quickly). I choose quickly and I was wrong. I realized it should use an adjective after be. When I checked dictionary, it says(do I need to use "said" here) that quick is an adjective. It is also an adverb same as quickly. what if they are both as adverb, which one should be used into a sentence?

Question

Answer

"What's the difference between...?" (You can't put just any preposition here)

Basically, you use quickly as an adverb and quick as an adjective.  Even though there are examples of quick being used as an adverb, it is hardly common and is even considered a mistake. In some cases it can sound uneducated.

Check your dictionary with a grain of salt. ;)

Answer

I agree with Patrick and I believe that you can use both the adverbs 'quick' and 'quickly' in your example ("you read quick" / "you read quickly") but 'quickly' is commonly used in formal writing and speech.

Answer

Thank you for your explanation. That reminds me the basic rule of grammar. What I confused is as quick is also an adverb, " You read quick." is correct or not?

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