Answer:
We don't know what sentences you are referring to. You must mention them.
Explanation:
In your introduction, you have to clearly identifiy the experience you are about to relate?
I believe the answer would be withdraw your cape. Unfold yourself wouldn't really mean unfold yourself, just take away your cape and talk.
good luck,
The correct option is: by using short, punchy phrases.
Explanation
In this case, the writer (Lewis Carroll), uses a sentence structure that is short with punchy phrases to speed up the pace of the writing, instead of using long sentences.
As a result, while you read the passage, it gives you a sensation of speed and produces more impact on the reader.