The interview is like an informal and formal one. A lot is expected to an interview. It doesn't really have to be formal or not because everything is subjective. It is informal compared to an essay. It is formal compared to a speech.
Answer:
His poetic form had to be able to channel what he saw as the poetry inherent in all the infinite activities of life. It's little wonder, then, that he found it necessary to invent a poetic form—free verse—that could give him the freedom to achieve those ends.
using the image of darkness to imply that something bad will happen
Answer:
I didn't watch TV yesterday.
When did you move to San Francisco?