"swirling-surf" is simply a more accurate and detailed description of surf that occurs in the ocean. "Swirling" implies that the surf is especially large and rough.
B) to show how a war tactic in literature became an internationally recognizable symbol
I would say that “He runs fast despite his old age.”
Hello. Although this question refers to the play "The crucuble" you did not inform the point of the play to which you ask these questions, which makes it difficult to answer accurately.
Elizbeth is portrayed as a sick character, which we can see that physically she is very weak and does not have the liveliness that other characters, like Abigail does. This can contribute to the lack of attractiveness between John and her, in addition to contributing to his initiative in looking for a lover. Elizabeth is also portrayed as a cold and emotionless wife at the beginning of the story, but shows a strong loyalty, courage and affection for John throughout the narrative.