I ordered fried chicken, and it was delivered in less than 30 minutes. So quick!

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Does 'So quick!' mean #1? Then what does 'it' refer to?

1. It was so quick.

"So quick!" seems to mean the speaker was surprised that delivery was so fast!

"It" is the order of fried chicken.

In the given context, the phrase 'So quick!' is likely referring to the quick delivery of the fried chicken. The pronoun 'it' is also referring to the delivery of the fried chicken. To understand the meaning of 'So quick!' in this context, let's break it down:

1. The speaker ordered fried chicken.
2. The fried chicken was delivered in less than 30 minutes.
3. The speaker expresses their surprise or appreciation for the quick delivery by saying 'So quick!'

Therefore, 'So quick!' means that the delivery of the fried chicken was very fast or happened much quicker than expected. 'It' refers to the action of delivering the fried chicken.